Home / 7,381.12-11,073.86-2,187.14

Finding the Fourth Proportional to 7,381.12, 11,073.86 and 2,187.14

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Solution

The fourth proportional to 7,381.12, 11,073.86 and 2,187.14 is: 3,281.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.12 : 11,073.86 = 2,187.14 : x
  2. Step 2: Convert to fraction form
    7,381.12/11,073.86 = 2,187.14/x
  3. Step 3: Cross multiply
    7,381.12x = 11,073.86 × 2,187.14
  4. Step 4: Simplify right side
    7,381.12x = 24,220,082.16
  5. Step 5: Solve for x
    x = 24,220,082.16/7,381.12
  6. Step 6: Final answer
    x = 3,281.36

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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.