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Finding the Fourth Proportional to 8,773.90, 13,124.40 and 7,461.70

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Solution

The fourth proportional to 8,773.90, 13,124.40 and 7,461.70 is: 11,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.90 : 13,124.40 = 7,461.70 : x
  2. Step 2: Convert to fraction form
    8,773.90/13,124.40 = 7,461.70/x
  3. Step 3: Cross multiply
    8,773.90x = 13,124.40 × 7,461.70
  4. Step 4: Simplify right side
    8,773.90x = 97,930,335.48
  5. Step 5: Solve for x
    x = 97,930,335.48/8,773.90
  6. Step 6: Final answer
    x = 11,161.55

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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.