Home / 18,581.28-25,642.08-10,197.72

Finding the Fourth Proportional to 18,581.28, 25,642.08 and 10,197.72

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Solution

The fourth proportional to 18,581.28, 25,642.08 and 10,197.72 is: 14,072.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.28 : 25,642.08 = 10,197.72 : x
  2. Step 2: Convert to fraction form
    18,581.28/25,642.08 = 10,197.72/x
  3. Step 3: Cross multiply
    18,581.28x = 25,642.08 × 10,197.72
  4. Step 4: Simplify right side
    18,581.28x = 261,490,752.06
  5. Step 5: Solve for x
    x = 261,490,752.06/18,581.28
  6. Step 6: Final answer
    x = 14,072.81

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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.