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Finding the Fourth Proportional to 7,278.88, 10,901.84 and 5,966.64

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Solution

The fourth proportional to 7,278.88, 10,901.84 and 5,966.64 is: 8,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.88 : 10,901.84 = 5,966.64 : x
  2. Step 2: Convert to fraction form
    7,278.88/10,901.84 = 5,966.64/x
  3. Step 3: Cross multiply
    7,278.88x = 10,901.84 × 5,966.64
  4. Step 4: Simplify right side
    7,278.88x = 65,047,354.62
  5. Step 5: Solve for x
    x = 65,047,354.62/7,278.88
  6. Step 6: Final answer
    x = 8,936.45

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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.