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Finding the Fourth Proportional to 8,687.66, 13,030.98 and 6,047.48

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Solution

The fourth proportional to 8,687.66, 13,030.98 and 6,047.48 is: 9,070.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.66 : 13,030.98 = 6,047.48 : x
  2. Step 2: Convert to fraction form
    8,687.66/13,030.98 = 6,047.48/x
  3. Step 3: Cross multiply
    8,687.66x = 13,030.98 × 6,047.48
  4. Step 4: Simplify right side
    8,687.66x = 78,804,590.93
  5. Step 5: Solve for x
    x = 78,804,590.93/8,687.66
  6. Step 6: Final answer
    x = 9,070.86

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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.