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Finding the Fourth Proportional to 8,697.10, 13,045.65 and 7,384.90

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Solution

The fourth proportional to 8,697.10, 13,045.65 and 7,384.90 is: 11,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.10 : 13,045.65 = 7,384.90 : x
  2. Step 2: Convert to fraction form
    8,697.10/13,045.65 = 7,384.90/x
  3. Step 3: Cross multiply
    8,697.10x = 13,045.65 × 7,384.90
  4. Step 4: Simplify right side
    8,697.10x = 96,340,820.69
  5. Step 5: Solve for x
    x = 96,340,820.69/8,697.10
  6. Step 6: Final answer
    x = 11,077.35

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Similar ratio
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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.