Home / 10,524.20-15,771.90-8,580.20

Finding the Fourth Proportional to 10,524.20, 15,771.90 and 8,580.20

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Solution

The fourth proportional to 10,524.20, 15,771.90 and 8,580.20 is: 12,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,524.20 : 15,771.90 = 8,580.20 : x
  2. Step 2: Convert to fraction form
    10,524.20/15,771.90 = 8,580.20/x
  3. Step 3: Cross multiply
    10,524.20x = 15,771.90 × 8,580.20
  4. Step 4: Simplify right side
    10,524.20x = 135,326,056.38
  5. Step 5: Solve for x
    x = 135,326,056.38/10,524.20
  6. Step 6: Final answer
    x = 12,858.56

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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.