Home / 18,254.80-25,191.24-10,805.20

Finding the Fourth Proportional to 18,254.80, 25,191.24 and 10,805.20

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Solution

The fourth proportional to 18,254.80, 25,191.24 and 10,805.20 is: 14,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.80 : 25,191.24 = 10,805.20 : x
  2. Step 2: Convert to fraction form
    18,254.80/25,191.24 = 10,805.20/x
  3. Step 3: Cross multiply
    18,254.80x = 25,191.24 × 10,805.20
  4. Step 4: Simplify right side
    18,254.80x = 272,196,386.45
  5. Step 5: Solve for x
    x = 272,196,386.45/18,254.80
  6. Step 6: Final answer
    x = 14,910.95

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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.