Home / 15,859.31-21,884.40-9,484.65

Finding the Fourth Proportional to 15,859.31, 21,884.40 and 9,484.65

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Solution

The fourth proportional to 15,859.31, 21,884.40 and 9,484.65 is: 13,087.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,859.31 : 21,884.40 = 9,484.65 : x
  2. Step 2: Convert to fraction form
    15,859.31/21,884.40 = 9,484.65/x
  3. Step 3: Cross multiply
    15,859.31x = 21,884.40 × 9,484.65
  4. Step 4: Simplify right side
    15,859.31x = 207,565,874.46
  5. Step 5: Solve for x
    x = 207,565,874.46/15,859.31
  6. Step 6: Final answer
    x = 13,087.96

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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.