Home / 15,634.24-21,565.92-13,534.72

Finding the Fourth Proportional to 15,634.24, 21,565.92 and 13,534.72

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Solution

The fourth proportional to 15,634.24, 21,565.92 and 13,534.72 is: 18,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634.24 : 21,565.92 = 13,534.72 : x
  2. Step 2: Convert to fraction form
    15,634.24/21,565.92 = 13,534.72/x
  3. Step 3: Cross multiply
    15,634.24x = 21,565.92 × 13,534.72
  4. Step 4: Simplify right side
    15,634.24x = 291,888,688.74
  5. Step 5: Solve for x
    x = 291,888,688.74/15,634.24
  6. Step 6: Final answer
    x = 18,669.84

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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.