Home / 26,915.18-40,379.26-8,447.18

Finding the Fourth Proportional to 26,915.18, 40,379.26 and 8,447.18

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Solution

The fourth proportional to 26,915.18, 40,379.26 and 8,447.18 is: 12,672.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.18 : 40,379.26 = 8,447.18 : x
  2. Step 2: Convert to fraction form
    26,915.18/40,379.26 = 8,447.18/x
  3. Step 3: Cross multiply
    26,915.18x = 40,379.26 × 8,447.18
  4. Step 4: Simplify right side
    26,915.18x = 341,090,877.49
  5. Step 5: Solve for x
    x = 341,090,877.49/26,915.18
  6. Step 6: Final answer
    x = 12,672.81

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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.