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Finding the Fourth Proportional to 8,984.57, 12,399.03 and 5,005.93

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Solution

The fourth proportional to 8,984.57, 12,399.03 and 5,005.93 is: 6,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.57 : 12,399.03 = 5,005.93 : x
  2. Step 2: Convert to fraction form
    8,984.57/12,399.03 = 5,005.93/x
  3. Step 3: Cross multiply
    8,984.57x = 12,399.03 × 5,005.93
  4. Step 4: Simplify right side
    8,984.57x = 62,068,614.25
  5. Step 5: Solve for x
    x = 62,068,614.25/8,984.57
  6. Step 6: Final answer
    x = 6,908.36

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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.