Home / 18,246.40-25,176.16-10,691.20

Finding the Fourth Proportional to 18,246.40, 25,176.16 and 10,691.20

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Solution

The fourth proportional to 18,246.40, 25,176.16 and 10,691.20 is: 14,751.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.40 : 25,176.16 = 10,691.20 : x
  2. Step 2: Convert to fraction form
    18,246.40/25,176.16 = 10,691.20/x
  3. Step 3: Cross multiply
    18,246.40x = 25,176.16 × 10,691.20
  4. Step 4: Simplify right side
    18,246.40x = 269,163,361.79
  5. Step 5: Solve for x
    x = 269,163,361.79/18,246.40
  6. Step 6: Final answer
    x = 14,751.59

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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.