Home / 10,118.75-13,972.69-6,348.40

Finding the Fourth Proportional to 10,118.75, 13,972.69 and 6,348.40

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Solution

The fourth proportional to 10,118.75, 13,972.69 and 6,348.40 is: 8,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.75 : 13,972.69 = 6,348.40 : x
  2. Step 2: Convert to fraction form
    10,118.75/13,972.69 = 6,348.40/x
  3. Step 3: Cross multiply
    10,118.75x = 13,972.69 × 6,348.40
  4. Step 4: Simplify right side
    10,118.75x = 88,704,174.39
  5. Step 5: Solve for x
    x = 88,704,174.39/10,118.75
  6. Step 6: Final answer
    x = 8,766.32

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Double scale
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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.