Home / 26,899.85-40,349.78-7,178.48

Finding the Fourth Proportional to 26,899.85, 40,349.78 and 7,178.48

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Solution

The fourth proportional to 26,899.85, 40,349.78 and 7,178.48 is: 10,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,899.85 : 40,349.78 = 7,178.48 : x
  2. Step 2: Convert to fraction form
    26,899.85/40,349.78 = 7,178.48/x
  3. Step 3: Cross multiply
    26,899.85x = 40,349.78 × 7,178.48
  4. Step 4: Simplify right side
    26,899.85x = 289,650,207.56
  5. Step 5: Solve for x
    x = 289,650,207.56/26,899.85
  6. Step 6: Final answer
    x = 10,767.72

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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.