Home / 26,157.40-39,234.30-8,387.80

Finding the Fourth Proportional to 26,157.40, 39,234.30 and 8,387.80

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Solution

The fourth proportional to 26,157.40, 39,234.30 and 8,387.80 is: 12,581.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,157.40 : 39,234.30 = 8,387.80 : x
  2. Step 2: Convert to fraction form
    26,157.40/39,234.30 = 8,387.80/x
  3. Step 3: Cross multiply
    26,157.40x = 39,234.30 × 8,387.80
  4. Step 4: Simplify right side
    26,157.40x = 329,089,461.54
  5. Step 5: Solve for x
    x = 329,089,461.54/26,157.40
  6. Step 6: Final answer
    x = 12,581.12

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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.