Home / 15,035.43-20,748.36-8,321.07

Finding the Fourth Proportional to 15,035.43, 20,748.36 and 8,321.07

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Solution

The fourth proportional to 15,035.43, 20,748.36 and 8,321.07 is: 11,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035.43 : 20,748.36 = 8,321.07 : x
  2. Step 2: Convert to fraction form
    15,035.43/20,748.36 = 8,321.07/x
  3. Step 3: Cross multiply
    15,035.43x = 20,748.36 × 8,321.07
  4. Step 4: Simplify right side
    15,035.43x = 172,648,452.20
  5. Step 5: Solve for x
    x = 172,648,452.20/15,035.43
  6. Step 6: Final answer
    x = 11,482.78

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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.