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Finding the Fourth Proportional to 9,086.59, 12,539.63 and 5,107.70

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Solution

The fourth proportional to 9,086.59, 12,539.63 and 5,107.70 is: 7,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,086.59 : 12,539.63 = 5,107.70 : x
  2. Step 2: Convert to fraction form
    9,086.59/12,539.63 = 5,107.70/x
  3. Step 3: Cross multiply
    9,086.59x = 12,539.63 × 5,107.70
  4. Step 4: Simplify right side
    9,086.59x = 64,048,712.27
  5. Step 5: Solve for x
    x = 64,048,712.27/9,086.59
  6. Step 6: Final answer
    x = 7,048.71

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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.