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Finding the Fourth Proportional to 8,687.31, 13,030.93 and 6,101.79

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Solution

The fourth proportional to 8,687.31, 13,030.93 and 6,101.79 is: 9,152.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.31 : 13,030.93 = 6,101.79 : x
  2. Step 2: Convert to fraction form
    8,687.31/13,030.93 = 6,101.79/x
  3. Step 3: Cross multiply
    8,687.31x = 13,030.93 × 6,101.79
  4. Step 4: Simplify right side
    8,687.31x = 79,511,998.36
  5. Step 5: Solve for x
    x = 79,511,998.36/8,687.31
  6. Step 6: Final answer
    x = 9,152.66

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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.