Home / 8,344.54-11,515.48-4,807.78

Finding the Fourth Proportional to 8,344.54, 11,515.48 and 4,807.78

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Solution

The fourth proportional to 8,344.54, 11,515.48 and 4,807.78 is: 6,634.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,344.54 : 11,515.48 = 4,807.78 : x
  2. Step 2: Convert to fraction form
    8,344.54/11,515.48 = 4,807.78/x
  3. Step 3: Cross multiply
    8,344.54x = 11,515.48 × 4,807.78
  4. Step 4: Simplify right side
    8,344.54x = 55,363,894.43
  5. Step 5: Solve for x
    x = 55,363,894.43/8,344.54
  6. Step 6: Final answer
    x = 6,634.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.