Home / 12,432.30-18,716.51-11,343.66

Finding the Fourth Proportional to 12,432.30, 18,716.51 and 11,343.66

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Solution

The fourth proportional to 12,432.30, 18,716.51 and 11,343.66 is: 17,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.30 : 18,716.51 = 11,343.66 : x
  2. Step 2: Convert to fraction form
    12,432.30/18,716.51 = 11,343.66/x
  3. Step 3: Cross multiply
    12,432.30x = 18,716.51 × 11,343.66
  4. Step 4: Simplify right side
    12,432.30x = 212,313,669.11
  5. Step 5: Solve for x
    x = 212,313,669.11/12,432.30
  6. Step 6: Final answer
    x = 17,077.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.