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Finding the Fourth Proportional to 8,983.73, 13,478.03 and 5,090.87

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Solution

The fourth proportional to 8,983.73, 13,478.03 and 5,090.87 is: 7,637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.73 : 13,478.03 = 5,090.87 : x
  2. Step 2: Convert to fraction form
    8,983.73/13,478.03 = 5,090.87/x
  3. Step 3: Cross multiply
    8,983.73x = 13,478.03 × 5,090.87
  4. Step 4: Simplify right side
    8,983.73x = 68,614,925.92
  5. Step 5: Solve for x
    x = 68,614,925.92/8,983.73
  6. Step 6: Final answer
    x = 7,637.69

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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.