Home / 15,001.62-20,708.13-9,896.32

Finding the Fourth Proportional to 15,001.62, 20,708.13 and 9,896.32

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Solution

The fourth proportional to 15,001.62, 20,708.13 and 9,896.32 is: 13,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.62 : 20,708.13 = 9,896.32 : x
  2. Step 2: Convert to fraction form
    15,001.62/20,708.13 = 9,896.32/x
  3. Step 3: Cross multiply
    15,001.62x = 20,708.13 × 9,896.32
  4. Step 4: Simplify right side
    15,001.62x = 204,934,281.08
  5. Step 5: Solve for x
    x = 204,934,281.08/15,001.62
  6. Step 6: Final answer
    x = 13,660.81

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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.