Home / 15,254.21-22,872.55-8,129.68

Finding the Fourth Proportional to 15,254.21, 22,872.55 and 8,129.68

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Solution

The fourth proportional to 15,254.21, 22,872.55 and 8,129.68 is: 12,189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,254.21 : 22,872.55 = 8,129.68 : x
  2. Step 2: Convert to fraction form
    15,254.21/22,872.55 = 8,129.68/x
  3. Step 3: Cross multiply
    15,254.21x = 22,872.55 × 8,129.68
  4. Step 4: Simplify right side
    15,254.21x = 185,946,434.78
  5. Step 5: Solve for x
    x = 185,946,434.78/15,254.21
  6. Step 6: Final answer
    x = 12,189.84

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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.