Home / 18,280.42-25,228.67-11,108.68

Finding the Fourth Proportional to 18,280.42, 25,228.67 and 11,108.68

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Solution

The fourth proportional to 18,280.42, 25,228.67 and 11,108.68 is: 15,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.42 : 25,228.67 = 11,108.68 : x
  2. Step 2: Convert to fraction form
    18,280.42/25,228.67 = 11,108.68/x
  3. Step 3: Cross multiply
    18,280.42x = 25,228.67 × 11,108.68
  4. Step 4: Simplify right side
    18,280.42x = 280,257,103.24
  5. Step 5: Solve for x
    x = 280,257,103.24/18,280.42
  6. Step 6: Final answer
    x = 15,331.00

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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.