Home / 13,083.70-18,055.34-7,115.24

Finding the Fourth Proportional to 13,083.70, 18,055.34 and 7,115.24

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Solution

The fourth proportional to 13,083.70, 18,055.34 and 7,115.24 is: 9,818.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.70 : 18,055.34 = 7,115.24 : x
  2. Step 2: Convert to fraction form
    13,083.70/18,055.34 = 7,115.24/x
  3. Step 3: Cross multiply
    13,083.70x = 18,055.34 × 7,115.24
  4. Step 4: Simplify right side
    13,083.70x = 128,468,095.84
  5. Step 5: Solve for x
    x = 128,468,095.84/13,083.70
  6. Step 6: Final answer
    x = 9,818.94

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Half scale
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Double scale
Find fourth proportional to 13,084.70, 18,056.72 and 7,116.24
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.