Home / 13,381.14-18,466.11-7,412.90

Finding the Fourth Proportional to 13,381.14, 18,466.11 and 7,412.90

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Solution

The fourth proportional to 13,381.14, 18,466.11 and 7,412.90 is: 10,229.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.14 : 18,466.11 = 7,412.90 : x
  2. Step 2: Convert to fraction form
    13,381.14/18,466.11 = 7,412.90/x
  3. Step 3: Cross multiply
    13,381.14x = 18,466.11 × 7,412.90
  4. Step 4: Simplify right side
    13,381.14x = 136,887,334.49
  5. Step 5: Solve for x
    x = 136,887,334.49/13,381.14
  6. Step 6: Final answer
    x = 10,229.87

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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.