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Finding the Fourth Proportional to 8,987.17, 13,483.20 and 5,094.31

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Solution

The fourth proportional to 8,987.17, 13,483.20 and 5,094.31 is: 7,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.17 : 13,483.20 = 5,094.31 : x
  2. Step 2: Convert to fraction form
    8,987.17/13,483.20 = 5,094.31/x
  3. Step 3: Cross multiply
    8,987.17x = 13,483.20 × 5,094.31
  4. Step 4: Simplify right side
    8,987.17x = 68,687,600.59
  5. Step 5: Solve for x
    x = 68,687,600.59/8,987.17
  6. Step 6: Final answer
    x = 7,642.85

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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.