Home / 15,532.56-21,434.17-8,817.31

Finding the Fourth Proportional to 15,532.56, 21,434.17 and 8,817.31

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Solution

The fourth proportional to 15,532.56, 21,434.17 and 8,817.31 is: 12,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.56 : 21,434.17 = 8,817.31 : x
  2. Step 2: Convert to fraction form
    15,532.56/21,434.17 = 8,817.31/x
  3. Step 3: Cross multiply
    15,532.56x = 21,434.17 × 8,817.31
  4. Step 4: Simplify right side
    15,532.56x = 188,991,622.20
  5. Step 5: Solve for x
    x = 188,991,622.20/15,532.56
  6. Step 6: Final answer
    x = 12,167.45

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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.