Home / 12,434.05-18,719.14-11,345.41

Finding the Fourth Proportional to 12,434.05, 18,719.14 and 11,345.41

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Solution

The fourth proportional to 12,434.05, 18,719.14 and 11,345.41 is: 17,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,434.05 : 18,719.14 = 11,345.41 : x
  2. Step 2: Convert to fraction form
    12,434.05/18,719.14 = 11,345.41/x
  3. Step 3: Cross multiply
    12,434.05x = 18,719.14 × 11,345.41
  4. Step 4: Simplify right side
    12,434.05x = 212,376,318.15
  5. Step 5: Solve for x
    x = 212,376,318.15/12,434.05
  6. Step 6: Final answer
    x = 17,080.22

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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.