Home / 18,499.28-25,529.04-10,115.84

Finding the Fourth Proportional to 18,499.28, 25,529.04 and 10,115.84

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Solution

The fourth proportional to 18,499.28, 25,529.04 and 10,115.84 is: 13,959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,499.28 : 25,529.04 = 10,115.84 : x
  2. Step 2: Convert to fraction form
    18,499.28/25,529.04 = 10,115.84/x
  3. Step 3: Cross multiply
    18,499.28x = 25,529.04 × 10,115.84
  4. Step 4: Simplify right side
    18,499.28x = 258,247,683.99
  5. Step 5: Solve for x
    x = 258,247,683.99/18,499.28
  6. Step 6: Final answer
    x = 13,959.88

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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.