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Finding the Fourth Proportional to 8,944.71, 12,343.74 and 5,589.47

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Solution

The fourth proportional to 8,944.71, 12,343.74 and 5,589.47 is: 7,713.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,944.71 : 12,343.74 = 5,589.47 : x
  2. Step 2: Convert to fraction form
    8,944.71/12,343.74 = 5,589.47/x
  3. Step 3: Cross multiply
    8,944.71x = 12,343.74 × 5,589.47
  4. Step 4: Simplify right side
    8,944.71x = 68,994,964.42
  5. Step 5: Solve for x
    x = 68,994,964.42/8,944.71
  6. Step 6: Final answer
    x = 7,713.50

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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.