Home / 18,778.22-25,913.85-10,281.11

Finding the Fourth Proportional to 18,778.22, 25,913.85 and 10,281.11

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Solution

The fourth proportional to 18,778.22, 25,913.85 and 10,281.11 is: 14,187.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.22 : 25,913.85 = 10,281.11 : x
  2. Step 2: Convert to fraction form
    18,778.22/25,913.85 = 10,281.11/x
  3. Step 3: Cross multiply
    18,778.22x = 25,913.85 × 10,281.11
  4. Step 4: Simplify right side
    18,778.22x = 266,423,142.37
  5. Step 5: Solve for x
    x = 266,423,142.37/18,778.22
  6. Step 6: Final answer
    x = 14,187.88

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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.