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Finding the Fourth Proportional to 8,347.62, 12,534.12 and 5,246.94

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Solution

The fourth proportional to 8,347.62, 12,534.12 and 5,246.94 is: 7,878.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.62 : 12,534.12 = 5,246.94 : x
  2. Step 2: Convert to fraction form
    8,347.62/12,534.12 = 5,246.94/x
  3. Step 3: Cross multiply
    8,347.62x = 12,534.12 × 5,246.94
  4. Step 4: Simplify right side
    8,347.62x = 65,765,775.59
  5. Step 5: Solve for x
    x = 65,765,775.59/8,347.62
  6. Step 6: Final answer
    x = 7,878.39

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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.