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Finding the Fourth Proportional to 8,881.04, 12,255.28 and 4,902

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Solution

The fourth proportional to 8,881.04, 12,255.28 and 4,902 is: 6,764.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.04 : 12,255.28 = 4,902 : x
  2. Step 2: Convert to fraction form
    8,881.04/12,255.28 = 4,902/x
  3. Step 3: Cross multiply
    8,881.04x = 12,255.28 × 4,902
  4. Step 4: Simplify right side
    8,881.04x = 60,075,382.56
  5. Step 5: Solve for x
    x = 60,075,382.56/8,881.04
  6. Step 6: Final answer
    x = 6,764.45

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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.