Home / 12,432.05-18,716.13-11,343.41

Finding the Fourth Proportional to 12,432.05, 18,716.13 and 11,343.41

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Solution

The fourth proportional to 12,432.05, 18,716.13 and 11,343.41 is: 17,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.05 : 18,716.13 = 11,343.41 : x
  2. Step 2: Convert to fraction form
    12,432.05/18,716.13 = 11,343.41/x
  3. Step 3: Cross multiply
    12,432.05x = 18,716.13 × 11,343.41
  4. Step 4: Simplify right side
    12,432.05x = 212,304,707.84
  5. Step 5: Solve for x
    x = 212,304,707.84/12,432.05
  6. Step 6: Final answer
    x = 17,077.21

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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.