Home / 26,440.94-39,666.68-8,915.78

Finding the Fourth Proportional to 26,440.94, 39,666.68 and 8,915.78

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Solution

The fourth proportional to 26,440.94, 39,666.68 and 8,915.78 is: 13,375.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,440.94 : 39,666.68 = 8,915.78 : x
  2. Step 2: Convert to fraction form
    26,440.94/39,666.68 = 8,915.78/x
  3. Step 3: Cross multiply
    26,440.94x = 39,666.68 × 8,915.78
  4. Step 4: Simplify right side
    26,440.94x = 353,659,392.21
  5. Step 5: Solve for x
    x = 353,659,392.21/26,440.94
  6. Step 6: Final answer
    x = 13,375.45

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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.