Home / 8,438.83-12,665.97-4,281.71

Finding the Fourth Proportional to 8,438.83, 12,665.97 and 4,281.71

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Solution

The fourth proportional to 8,438.83, 12,665.97 and 4,281.71 is: 6,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.83 : 12,665.97 = 4,281.71 : x
  2. Step 2: Convert to fraction form
    8,438.83/12,665.97 = 4,281.71/x
  3. Step 3: Cross multiply
    8,438.83x = 12,665.97 × 4,281.71
  4. Step 4: Simplify right side
    8,438.83x = 54,232,010.41
  5. Step 5: Solve for x
    x = 54,232,010.41/8,438.83
  6. Step 6: Final answer
    x = 6,426.48

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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.