Home / 15,592.79-21,520.68-8,877.49

Finding the Fourth Proportional to 15,592.79, 21,520.68 and 8,877.49

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Solution

The fourth proportional to 15,592.79, 21,520.68 and 8,877.49 is: 12,252.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592.79 : 21,520.68 = 8,877.49 : x
  2. Step 2: Convert to fraction form
    15,592.79/21,520.68 = 8,877.49/x
  3. Step 3: Cross multiply
    15,592.79x = 21,520.68 × 8,877.49
  4. Step 4: Simplify right side
    15,592.79x = 191,049,567.69
  5. Step 5: Solve for x
    x = 191,049,567.69/15,592.79
  6. Step 6: Final answer
    x = 12,252.43

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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.