Home / 8,601.28-12,901.36-2,678.05

Finding the Fourth Proportional to 8,601.28, 12,901.36 and 2,678.05

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Solution

The fourth proportional to 8,601.28, 12,901.36 and 2,678.05 is: 4,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.28 : 12,901.36 = 2,678.05 : x
  2. Step 2: Convert to fraction form
    8,601.28/12,901.36 = 2,678.05/x
  3. Step 3: Cross multiply
    8,601.28x = 12,901.36 × 2,678.05
  4. Step 4: Simplify right side
    8,601.28x = 34,550,487.15
  5. Step 5: Solve for x
    x = 34,550,487.15/8,601.28
  6. Step 6: Final answer
    x = 4,016.90

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1.5x scale

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.