Home / 12,376.99-17,082.39-9,387.82

Finding the Fourth Proportional to 12,376.99, 17,082.39 and 9,387.82

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Solution

The fourth proportional to 12,376.99, 17,082.39 and 9,387.82 is: 12,956.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.99 : 17,082.39 = 9,387.82 : x
  2. Step 2: Convert to fraction form
    12,376.99/17,082.39 = 9,387.82/x
  3. Step 3: Cross multiply
    12,376.99x = 17,082.39 × 9,387.82
  4. Step 4: Simplify right side
    12,376.99x = 160,366,402.49
  5. Step 5: Solve for x
    x = 160,366,402.49/12,376.99
  6. Step 6: Final answer
    x = 12,956.82

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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.