Home / 10,356.39-15,534.59-2,565.21

Finding the Fourth Proportional to 10,356.39, 15,534.59 and 2,565.21

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Solution

The fourth proportional to 10,356.39, 15,534.59 and 2,565.21 is: 3,847.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.39 : 15,534.59 = 2,565.21 : x
  2. Step 2: Convert to fraction form
    10,356.39/15,534.59 = 2,565.21/x
  3. Step 3: Cross multiply
    10,356.39x = 15,534.59 × 2,565.21
  4. Step 4: Simplify right side
    10,356.39x = 39,849,472.79
  5. Step 5: Solve for x
    x = 39,849,472.79/10,356.39
  6. Step 6: Final answer
    x = 3,847.82

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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.