Home / 8,654.86-11,943.72-4,878.04

Finding the Fourth Proportional to 8,654.86, 11,943.72 and 4,878.04

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Solution

The fourth proportional to 8,654.86, 11,943.72 and 4,878.04 is: 6,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.86 : 11,943.72 = 4,878.04 : x
  2. Step 2: Convert to fraction form
    8,654.86/11,943.72 = 4,878.04/x
  3. Step 3: Cross multiply
    8,654.86x = 11,943.72 × 4,878.04
  4. Step 4: Simplify right side
    8,654.86x = 58,261,943.91
  5. Step 5: Solve for x
    x = 58,261,943.91/8,654.86
  6. Step 6: Final answer
    x = 6,731.70

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1.5x scale

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.