Home / 18,278.11-25,223.36-10,320.13

Finding the Fourth Proportional to 18,278.11, 25,223.36 and 10,320.13

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Solution

The fourth proportional to 18,278.11, 25,223.36 and 10,320.13 is: 14,241.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.11 : 25,223.36 = 10,320.13 : x
  2. Step 2: Convert to fraction form
    18,278.11/25,223.36 = 10,320.13/x
  3. Step 3: Cross multiply
    18,278.11x = 25,223.36 × 10,320.13
  4. Step 4: Simplify right side
    18,278.11x = 260,308,354.24
  5. Step 5: Solve for x
    x = 260,308,354.24/18,278.11
  6. Step 6: Final answer
    x = 14,241.54

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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.