Home / 26,364.78-39,546.71-6,642.90

Finding the Fourth Proportional to 26,364.78, 39,546.71 and 6,642.90

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Solution

The fourth proportional to 26,364.78, 39,546.71 and 6,642.90 is: 9,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,364.78 : 39,546.71 = 6,642.90 : x
  2. Step 2: Convert to fraction form
    26,364.78/39,546.71 = 6,642.90/x
  3. Step 3: Cross multiply
    26,364.78x = 39,546.71 × 6,642.90
  4. Step 4: Simplify right side
    26,364.78x = 262,704,856.47
  5. Step 5: Solve for x
    x = 262,704,856.47/26,364.78
  6. Step 6: Final answer
    x = 9,964.23

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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.