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Finding the Fourth Proportional to 8,347.65, 12,539.90 and 5,062.69

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Solution

The fourth proportional to 8,347.65, 12,539.90 and 5,062.69 is: 7,605.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.65 : 12,539.90 = 5,062.69 : x
  2. Step 2: Convert to fraction form
    8,347.65/12,539.90 = 5,062.69/x
  3. Step 3: Cross multiply
    8,347.65x = 12,539.90 × 5,062.69
  4. Step 4: Simplify right side
    8,347.65x = 63,485,626.33
  5. Step 5: Solve for x
    x = 63,485,626.33/8,347.65
  6. Step 6: Final answer
    x = 7,605.21

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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.