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Finding the Fourth Proportional to 10,520.32, 15,773.22 and 7,011.40

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Solution

The fourth proportional to 10,520.32, 15,773.22 and 7,011.40 is: 10,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.32 : 15,773.22 = 7,011.40 : x
  2. Step 2: Convert to fraction form
    10,520.32/15,773.22 = 7,011.40/x
  3. Step 3: Cross multiply
    10,520.32x = 15,773.22 × 7,011.40
  4. Step 4: Simplify right side
    10,520.32x = 110,592,354.71
  5. Step 5: Solve for x
    x = 110,592,354.71/10,520.32
  6. Step 6: Final answer
    x = 10,512.26

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1.5x scale

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.