Home / 18,342.86-25,313.19-9,959.18

Finding the Fourth Proportional to 18,342.86, 25,313.19 and 9,959.18

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Solution

The fourth proportional to 18,342.86, 25,313.19 and 9,959.18 is: 13,743.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.86 : 25,313.19 = 9,959.18 : x
  2. Step 2: Convert to fraction form
    18,342.86/25,313.19 = 9,959.18/x
  3. Step 3: Cross multiply
    18,342.86x = 25,313.19 × 9,959.18
  4. Step 4: Simplify right side
    18,342.86x = 252,098,615.58
  5. Step 5: Solve for x
    x = 252,098,615.58/18,342.86
  6. Step 6: Final answer
    x = 13,743.69

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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.