Home / 18,686.09-25,785.51-10,510.92

Finding the Fourth Proportional to 18,686.09, 25,785.51 and 10,510.92

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Solution

The fourth proportional to 18,686.09, 25,785.51 and 10,510.92 is: 14,504.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.09 : 25,785.51 = 10,510.92 : x
  2. Step 2: Convert to fraction form
    18,686.09/25,785.51 = 10,510.92/x
  3. Step 3: Cross multiply
    18,686.09x = 25,785.51 × 10,510.92
  4. Step 4: Simplify right side
    18,686.09x = 271,029,432.77
  5. Step 5: Solve for x
    x = 271,029,432.77/18,686.09
  6. Step 6: Final answer
    x = 14,504.34

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Half scale
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Double scale
Find fourth proportional to 18,687.09, 25,786.89 and 10,511.92
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.