Home / 8,355.30-12,508.34-6,173.78

Finding the Fourth Proportional to 8,355.30, 12,508.34 and 6,173.78

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Solution

The fourth proportional to 8,355.30, 12,508.34 and 6,173.78 is: 9,242.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.30 : 12,508.34 = 6,173.78 : x
  2. Step 2: Convert to fraction form
    8,355.30/12,508.34 = 6,173.78/x
  3. Step 3: Cross multiply
    8,355.30x = 12,508.34 × 6,173.78
  4. Step 4: Simplify right side
    8,355.30x = 77,223,645.91
  5. Step 5: Solve for x
    x = 77,223,645.91/8,355.30
  6. Step 6: Final answer
    x = 9,242.47

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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.