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Finding the Fourth Proportional to 8,798.16, 12,136.86 and 5,439.90

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Solution

The fourth proportional to 8,798.16, 12,136.86 and 5,439.90 is: 7,504.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.16 : 12,136.86 = 5,439.90 : x
  2. Step 2: Convert to fraction form
    8,798.16/12,136.86 = 5,439.90/x
  3. Step 3: Cross multiply
    8,798.16x = 12,136.86 × 5,439.90
  4. Step 4: Simplify right side
    8,798.16x = 66,023,304.71
  5. Step 5: Solve for x
    x = 66,023,304.71/8,798.16
  6. Step 6: Final answer
    x = 7,504.22

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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.