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Finding the Fourth Proportional to 8,750.88, 13,127.76 and 2,906.88

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Solution

The fourth proportional to 8,750.88, 13,127.76 and 2,906.88 is: 4,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.88 : 13,127.76 = 2,906.88 : x
  2. Step 2: Convert to fraction form
    8,750.88/13,127.76 = 2,906.88/x
  3. Step 3: Cross multiply
    8,750.88x = 13,127.76 × 2,906.88
  4. Step 4: Simplify right side
    8,750.88x = 38,160,822.99
  5. Step 5: Solve for x
    x = 38,160,822.99/8,750.88
  6. Step 6: Final answer
    x = 4,360.80

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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.