Home / 10,132.56-15,181.40-9,105.35

Finding the Fourth Proportional to 10,132.56, 15,181.40 and 9,105.35

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Solution

The fourth proportional to 10,132.56, 15,181.40 and 9,105.35 is: 13,642.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,132.56 : 15,181.40 = 9,105.35 : x
  2. Step 2: Convert to fraction form
    10,132.56/15,181.40 = 9,105.35/x
  3. Step 3: Cross multiply
    10,132.56x = 15,181.40 × 9,105.35
  4. Step 4: Simplify right side
    10,132.56x = 138,231,907.35
  5. Step 5: Solve for x
    x = 138,231,907.35/10,132.56
  6. Step 6: Final answer
    x = 13,642.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.