Home / 12,376.72-17,077.11-7,338.38

Finding the Fourth Proportional to 12,376.72, 17,077.11 and 7,338.38

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Solution

The fourth proportional to 12,376.72, 17,077.11 and 7,338.38 is: 10,125.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.72 : 17,077.11 = 7,338.38 : x
  2. Step 2: Convert to fraction form
    12,376.72/17,077.11 = 7,338.38/x
  3. Step 3: Cross multiply
    12,376.72x = 17,077.11 × 7,338.38
  4. Step 4: Simplify right side
    12,376.72x = 125,318,322.48
  5. Step 5: Solve for x
    x = 125,318,322.48/12,376.72
  6. Step 6: Final answer
    x = 10,125.33

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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.