Home / 15,134.18-20,885.46-8,850.20

Finding the Fourth Proportional to 15,134.18, 20,885.46 and 8,850.20

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Solution

The fourth proportional to 15,134.18, 20,885.46 and 8,850.20 is: 12,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.18 : 20,885.46 = 8,850.20 : x
  2. Step 2: Convert to fraction form
    15,134.18/20,885.46 = 8,850.20/x
  3. Step 3: Cross multiply
    15,134.18x = 20,885.46 × 8,850.20
  4. Step 4: Simplify right side
    15,134.18x = 184,840,498.09
  5. Step 5: Solve for x
    x = 184,840,498.09/15,134.18
  6. Step 6: Final answer
    x = 12,213.45

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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.