Home / 11,385.57-15,712.18-6,350.12

Finding the Fourth Proportional to 11,385.57, 15,712.18 and 6,350.12

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Solution

The fourth proportional to 11,385.57, 15,712.18 and 6,350.12 is: 8,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.57 : 15,712.18 = 6,350.12 : x
  2. Step 2: Convert to fraction form
    11,385.57/15,712.18 = 6,350.12/x
  3. Step 3: Cross multiply
    11,385.57x = 15,712.18 × 6,350.12
  4. Step 4: Simplify right side
    11,385.57x = 99,774,205.06
  5. Step 5: Solve for x
    x = 99,774,205.06/11,385.57
  6. Step 6: Final answer
    x = 8,763.21

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Half scale
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Double scale
Find fourth proportional to 11,386.57, 15,713.56 and 6,351.12
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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.