Home / 18,315.55-25,272.25-11,244.25

Finding the Fourth Proportional to 18,315.55, 25,272.25 and 11,244.25

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Solution

The fourth proportional to 18,315.55, 25,272.25 and 11,244.25 is: 15,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.55 : 25,272.25 = 11,244.25 : x
  2. Step 2: Convert to fraction form
    18,315.55/25,272.25 = 11,244.25/x
  3. Step 3: Cross multiply
    18,315.55x = 25,272.25 × 11,244.25
  4. Step 4: Simplify right side
    18,315.55x = 284,167,563.79
  5. Step 5: Solve for x
    x = 284,167,563.79/18,315.55
  6. Step 6: Final answer
    x = 15,515.10

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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.