Home / 19,866.65-29,785.52-9,331.25

Finding the Fourth Proportional to 19,866.65, 29,785.52 and 9,331.25

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Solution

The fourth proportional to 19,866.65, 29,785.52 and 9,331.25 is: 13,990.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.65 : 29,785.52 = 9,331.25 : x
  2. Step 2: Convert to fraction form
    19,866.65/29,785.52 = 9,331.25/x
  3. Step 3: Cross multiply
    19,866.65x = 29,785.52 × 9,331.25
  4. Step 4: Simplify right side
    19,866.65x = 277,935,937.92
  5. Step 5: Solve for x
    x = 277,935,937.92/19,866.65
  6. Step 6: Final answer
    x = 13,990.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.