Home / 18,689.64-25,791.56-10,306.14

Finding the Fourth Proportional to 18,689.64, 25,791.56 and 10,306.14

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Solution

The fourth proportional to 18,689.64, 25,791.56 and 10,306.14 is: 14,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.64 : 25,791.56 = 10,306.14 : x
  2. Step 2: Convert to fraction form
    18,689.64/25,791.56 = 10,306.14/x
  3. Step 3: Cross multiply
    18,689.64x = 25,791.56 × 10,306.14
  4. Step 4: Simplify right side
    18,689.64x = 265,811,428.18
  5. Step 5: Solve for x
    x = 265,811,428.18/18,689.64
  6. Step 6: Final answer
    x = 14,222.39

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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.