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Finding the Fourth Proportional to 8,901.34, 13,359.93 and 4,744.78

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Solution

The fourth proportional to 8,901.34, 13,359.93 and 4,744.78 is: 7,121.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.34 : 13,359.93 = 4,744.78 : x
  2. Step 2: Convert to fraction form
    8,901.34/13,359.93 = 4,744.78/x
  3. Step 3: Cross multiply
    8,901.34x = 13,359.93 × 4,744.78
  4. Step 4: Simplify right side
    8,901.34x = 63,389,877.47
  5. Step 5: Solve for x
    x = 63,389,877.47/8,901.34
  6. Step 6: Final answer
    x = 7,121.39

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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.