Home / 12,715.23-17,527.56-8,927.79

Finding the Fourth Proportional to 12,715.23, 17,527.56 and 8,927.79

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Solution

The fourth proportional to 12,715.23, 17,527.56 and 8,927.79 is: 12,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.23 : 17,527.56 = 8,927.79 : x
  2. Step 2: Convert to fraction form
    12,715.23/17,527.56 = 8,927.79/x
  3. Step 3: Cross multiply
    12,715.23x = 17,527.56 × 8,927.79
  4. Step 4: Simplify right side
    12,715.23x = 156,482,374.89
  5. Step 5: Solve for x
    x = 156,482,374.89/12,715.23
  6. Step 6: Final answer
    x = 12,306.69

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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.