Home / 18,343.42-25,313.90-9,959.92

Finding the Fourth Proportional to 18,343.42, 25,313.90 and 9,959.92

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Solution

The fourth proportional to 18,343.42, 25,313.90 and 9,959.92 is: 13,744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.42 : 25,313.90 = 9,959.92 : x
  2. Step 2: Convert to fraction form
    18,343.42/25,313.90 = 9,959.92/x
  3. Step 3: Cross multiply
    18,343.42x = 25,313.90 × 9,959.92
  4. Step 4: Simplify right side
    18,343.42x = 252,124,305.80
  5. Step 5: Solve for x
    x = 252,124,305.80/18,343.42
  6. Step 6: Final answer
    x = 13,744.67

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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.