Home / 8,306.10-12,459.15-5,681.70

Finding the Fourth Proportional to 8,306.10, 12,459.15 and 5,681.70

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Solution

The fourth proportional to 8,306.10, 12,459.15 and 5,681.70 is: 8,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,306.10 : 12,459.15 = 5,681.70 : x
  2. Step 2: Convert to fraction form
    8,306.10/12,459.15 = 5,681.70/x
  3. Step 3: Cross multiply
    8,306.10x = 12,459.15 × 5,681.70
  4. Step 4: Simplify right side
    8,306.10x = 70,789,152.56
  5. Step 5: Solve for x
    x = 70,789,152.56/8,306.10
  6. Step 6: Final answer
    x = 8,522.55

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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.