Home / 18,354.75-25,331.72-10,902.75

Finding the Fourth Proportional to 18,354.75, 25,331.72 and 10,902.75

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Solution

The fourth proportional to 18,354.75, 25,331.72 and 10,902.75 is: 15,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.75 : 25,331.72 = 10,902.75 : x
  2. Step 2: Convert to fraction form
    18,354.75/25,331.72 = 10,902.75/x
  3. Step 3: Cross multiply
    18,354.75x = 25,331.72 × 10,902.75
  4. Step 4: Simplify right side
    18,354.75x = 276,185,355.72
  5. Step 5: Solve for x
    x = 276,185,355.72/18,354.75
  6. Step 6: Final answer
    x = 15,047.08

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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.