Home / 14,281.29-19,689.30-11,719.71

Finding the Fourth Proportional to 14,281.29, 19,689.30 and 11,719.71

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Solution

The fourth proportional to 14,281.29, 19,689.30 and 11,719.71 is: 16,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.29 : 19,689.30 = 11,719.71 : x
  2. Step 2: Convert to fraction form
    14,281.29/19,689.30 = 11,719.71/x
  3. Step 3: Cross multiply
    14,281.29x = 19,689.30 × 11,719.71
  4. Step 4: Simplify right side
    14,281.29x = 230,752,886.10
  5. Step 5: Solve for x
    x = 230,752,886.10/14,281.29
  6. Step 6: Final answer
    x = 16,157.71

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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.