Home / 8,708.17-12,017.28-5,171.62

Finding the Fourth Proportional to 8,708.17, 12,017.28 and 5,171.62

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Solution

The fourth proportional to 8,708.17, 12,017.28 and 5,171.62 is: 7,136.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.17 : 12,017.28 = 5,171.62 : x
  2. Step 2: Convert to fraction form
    8,708.17/12,017.28 = 5,171.62/x
  3. Step 3: Cross multiply
    8,708.17x = 12,017.28 × 5,171.62
  4. Step 4: Simplify right side
    8,708.17x = 62,148,805.59
  5. Step 5: Solve for x
    x = 62,148,805.59/8,708.17
  6. Step 6: Final answer
    x = 7,136.84

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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.