Home / 18,510.69-25,545.39-10,127.19

Finding the Fourth Proportional to 18,510.69, 25,545.39 and 10,127.19

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Solution

The fourth proportional to 18,510.69, 25,545.39 and 10,127.19 is: 13,975.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.69 : 25,545.39 = 10,127.19 : x
  2. Step 2: Convert to fraction form
    18,510.69/25,545.39 = 10,127.19/x
  3. Step 3: Cross multiply
    18,510.69x = 25,545.39 × 10,127.19
  4. Step 4: Simplify right side
    18,510.69x = 258,703,018.15
  5. Step 5: Solve for x
    x = 258,703,018.15/18,510.69
  6. Step 6: Final answer
    x = 13,975.87

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Half scale
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Double scale
Find fourth proportional to 18,511.69, 25,546.77 and 10,128.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.