Home / 7,118.12-10,677.18-2,187.11

Finding the Fourth Proportional to 7,118.12, 10,677.18 and 2,187.11

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Solution

The fourth proportional to 7,118.12, 10,677.18 and 2,187.11 is: 3,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.12 : 10,677.18 = 2,187.11 : x
  2. Step 2: Convert to fraction form
    7,118.12/10,677.18 = 2,187.11/x
  3. Step 3: Cross multiply
    7,118.12x = 10,677.18 × 2,187.11
  4. Step 4: Simplify right side
    7,118.12x = 23,352,113.76
  5. Step 5: Solve for x
    x = 23,352,113.76/7,118.12
  6. Step 6: Final answer
    x = 3,280.66

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Double scale
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Similar ratio
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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.