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Finding the Fourth Proportional to 8,979.77, 13,457.17 and 4,587.95

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Solution

The fourth proportional to 8,979.77, 13,457.17 and 4,587.95 is: 6,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.77 : 13,457.17 = 4,587.95 : x
  2. Step 2: Convert to fraction form
    8,979.77/13,457.17 = 4,587.95/x
  3. Step 3: Cross multiply
    8,979.77x = 13,457.17 × 4,587.95
  4. Step 4: Simplify right side
    8,979.77x = 61,740,823.10
  5. Step 5: Solve for x
    x = 61,740,823.10/8,979.77
  6. Step 6: Final answer
    x = 6,875.55

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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.