Home / 8,925.16-13,387.68-6,979

Finding the Fourth Proportional to 8,925.16, 13,387.68 and 6,979

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Solution

The fourth proportional to 8,925.16, 13,387.68 and 6,979 is: 10,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.16 : 13,387.68 = 6,979 : x
  2. Step 2: Convert to fraction form
    8,925.16/13,387.68 = 6,979/x
  3. Step 3: Cross multiply
    8,925.16x = 13,387.68 × 6,979
  4. Step 4: Simplify right side
    8,925.16x = 93,432,618.72
  5. Step 5: Solve for x
    x = 93,432,618.72/8,925.16
  6. Step 6: Final answer
    x = 10,468.45

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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.