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Finding the Fourth Proportional to 8,856.33, 13,179.95 and 8,561.04

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Solution

The fourth proportional to 8,856.33, 13,179.95 and 8,561.04 is: 12,740.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.33 : 13,179.95 = 8,561.04 : x
  2. Step 2: Convert to fraction form
    8,856.33/13,179.95 = 8,561.04/x
  3. Step 3: Cross multiply
    8,856.33x = 13,179.95 × 8,561.04
  4. Step 4: Simplify right side
    8,856.33x = 112,834,036.34
  5. Step 5: Solve for x
    x = 112,834,036.34/8,856.33
  6. Step 6: Final answer
    x = 12,740.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.