Home / 13,456.73-20,186.92-4,689.29

Finding the Fourth Proportional to 13,456.73, 20,186.92 and 4,689.29

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Solution

The fourth proportional to 13,456.73, 20,186.92 and 4,689.29 is: 7,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.73 : 20,186.92 = 4,689.29 : x
  2. Step 2: Convert to fraction form
    13,456.73/20,186.92 = 4,689.29/x
  3. Step 3: Cross multiply
    13,456.73x = 20,186.92 × 4,689.29
  4. Step 4: Simplify right side
    13,456.73x = 94,662,378.42
  5. Step 5: Solve for x
    x = 94,662,378.42/13,456.73
  6. Step 6: Final answer
    x = 7,034.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.