Home / 15,156.72-22,686.60-8,119.20

Finding the Fourth Proportional to 15,156.72, 22,686.60 and 8,119.20

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Solution

The fourth proportional to 15,156.72, 22,686.60 and 8,119.20 is: 12,152.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156.72 : 22,686.60 = 8,119.20 : x
  2. Step 2: Convert to fraction form
    15,156.72/22,686.60 = 8,119.20/x
  3. Step 3: Cross multiply
    15,156.72x = 22,686.60 × 8,119.20
  4. Step 4: Simplify right side
    15,156.72x = 184,197,042.72
  5. Step 5: Solve for x
    x = 184,197,042.72/15,156.72
  6. Step 6: Final answer
    x = 12,152.83

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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.