Home / 18,225.56-25,150.65-11,151.98

Finding the Fourth Proportional to 18,225.56, 25,150.65 and 11,151.98

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Solution

The fourth proportional to 18,225.56, 25,150.65 and 11,151.98 is: 15,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.56 : 25,150.65 = 11,151.98 : x
  2. Step 2: Convert to fraction form
    18,225.56/25,150.65 = 11,151.98/x
  3. Step 3: Cross multiply
    18,225.56x = 25,150.65 × 11,151.98
  4. Step 4: Simplify right side
    18,225.56x = 280,479,535.26
  5. Step 5: Solve for x
    x = 280,479,535.26/18,225.56
  6. Step 6: Final answer
    x = 15,389.35

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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.