Home / 15,132.64-20,882.37-8,758.21

Finding the Fourth Proportional to 15,132.64, 20,882.37 and 8,758.21

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Solution

The fourth proportional to 15,132.64, 20,882.37 and 8,758.21 is: 12,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.64 : 20,882.37 = 8,758.21 : x
  2. Step 2: Convert to fraction form
    15,132.64/20,882.37 = 8,758.21/x
  3. Step 3: Cross multiply
    15,132.64x = 20,882.37 × 8,758.21
  4. Step 4: Simplify right side
    15,132.64x = 182,892,181.76
  5. Step 5: Solve for x
    x = 182,892,181.76/15,132.64
  6. Step 6: Final answer
    x = 12,085.94

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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.