Home / 11,433.18-15,778.74-6,397.87

Finding the Fourth Proportional to 11,433.18, 15,778.74 and 6,397.87

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Solution

The fourth proportional to 11,433.18, 15,778.74 and 6,397.87 is: 8,829.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.18 : 15,778.74 = 6,397.87 : x
  2. Step 2: Convert to fraction form
    11,433.18/15,778.74 = 6,397.87/x
  3. Step 3: Cross multiply
    11,433.18x = 15,778.74 × 6,397.87
  4. Step 4: Simplify right side
    11,433.18x = 100,950,248.39
  5. Step 5: Solve for x
    x = 100,950,248.39/11,433.18
  6. Step 6: Final answer
    x = 8,829.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.