Home / 8,342.39-11,520.15-5,363.41

Finding the Fourth Proportional to 8,342.39, 11,520.15 and 5,363.41

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Solution

The fourth proportional to 8,342.39, 11,520.15 and 5,363.41 is: 7,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.39 : 11,520.15 = 5,363.41 : x
  2. Step 2: Convert to fraction form
    8,342.39/11,520.15 = 5,363.41/x
  3. Step 3: Cross multiply
    8,342.39x = 11,520.15 × 5,363.41
  4. Step 4: Simplify right side
    8,342.39x = 61,787,260.89
  5. Step 5: Solve for x
    x = 61,787,260.89/8,342.39
  6. Step 6: Final answer
    x = 7,406.43

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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.