Home / 15,512.64-21,397.82-13,527.96

Finding the Fourth Proportional to 15,512.64, 21,397.82 and 13,527.96

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Solution

The fourth proportional to 15,512.64, 21,397.82 and 13,527.96 is: 18,660.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.64 : 21,397.82 = 13,527.96 : x
  2. Step 2: Convert to fraction form
    15,512.64/21,397.82 = 13,527.96/x
  3. Step 3: Cross multiply
    15,512.64x = 21,397.82 × 13,527.96
  4. Step 4: Simplify right side
    15,512.64x = 289,468,853.05
  5. Step 5: Solve for x
    x = 289,468,853.05/15,512.64
  6. Step 6: Final answer
    x = 18,660.19

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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.