Home / 18,341.86-25,311.81-9,958.18

Finding the Fourth Proportional to 18,341.86, 25,311.81 and 9,958.18

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Solution

The fourth proportional to 18,341.86, 25,311.81 and 9,958.18 is: 13,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.86 : 25,311.81 = 9,958.18 : x
  2. Step 2: Convert to fraction form
    18,341.86/25,311.81 = 9,958.18/x
  3. Step 3: Cross multiply
    18,341.86x = 25,311.81 × 9,958.18
  4. Step 4: Simplify right side
    18,341.86x = 252,059,560.11
  5. Step 5: Solve for x
    x = 252,059,560.11/18,341.86
  6. Step 6: Final answer
    x = 13,742.31

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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.