Home / 8,381.30-12,557.55-4,426.70

Finding the Fourth Proportional to 8,381.30, 12,557.55 and 4,426.70

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Solution

The fourth proportional to 8,381.30, 12,557.55 and 4,426.70 is: 6,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.30 : 12,557.55 = 4,426.70 : x
  2. Step 2: Convert to fraction form
    8,381.30/12,557.55 = 4,426.70/x
  3. Step 3: Cross multiply
    8,381.30x = 12,557.55 × 4,426.70
  4. Step 4: Simplify right side
    8,381.30x = 55,588,506.59
  5. Step 5: Solve for x
    x = 55,588,506.59/8,381.30
  6. Step 6: Final answer
    x = 6,632.44

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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.