Home / 8,654.88-11,941.80-5,118

Finding the Fourth Proportional to 8,654.88, 11,941.80 and 5,118

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Solution

The fourth proportional to 8,654.88, 11,941.80 and 5,118 is: 7,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.88 : 11,941.80 = 5,118 : x
  2. Step 2: Convert to fraction form
    8,654.88/11,941.80 = 5,118/x
  3. Step 3: Cross multiply
    8,654.88x = 11,941.80 × 5,118
  4. Step 4: Simplify right side
    8,654.88x = 61,118,132.40
  5. Step 5: Solve for x
    x = 61,118,132.40/8,654.88
  6. Step 6: Final answer
    x = 7,061.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.