Home / 10,217.34-15,317.15-8,476.83

Finding the Fourth Proportional to 10,217.34, 15,317.15 and 8,476.83

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Solution

The fourth proportional to 10,217.34, 15,317.15 and 8,476.83 is: 12,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.34 : 15,317.15 = 8,476.83 : x
  2. Step 2: Convert to fraction form
    10,217.34/15,317.15 = 8,476.83/x
  3. Step 3: Cross multiply
    10,217.34x = 15,317.15 × 8,476.83
  4. Step 4: Simplify right side
    10,217.34x = 129,840,834.25
  5. Step 5: Solve for x
    x = 129,840,834.25/10,217.34
  6. Step 6: Final answer
    x = 12,707.89

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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.