Home / 9,123.84-13,685.76-3,278.88

Finding the Fourth Proportional to 9,123.84, 13,685.76 and 3,278.88

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Solution

The fourth proportional to 9,123.84, 13,685.76 and 3,278.88 is: 4,918.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.84 : 13,685.76 = 3,278.88 : x
  2. Step 2: Convert to fraction form
    9,123.84/13,685.76 = 3,278.88/x
  3. Step 3: Cross multiply
    9,123.84x = 13,685.76 × 3,278.88
  4. Step 4: Simplify right side
    9,123.84x = 44,873,964.75
  5. Step 5: Solve for x
    x = 44,873,964.75/9,123.84
  6. Step 6: Final answer
    x = 4,918.32

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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.