Home / 13,349.34-18,422.28-7,380.96

Finding the Fourth Proportional to 13,349.34, 18,422.28 and 7,380.96

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Solution

The fourth proportional to 13,349.34, 18,422.28 and 7,380.96 is: 10,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.34 : 18,422.28 = 7,380.96 : x
  2. Step 2: Convert to fraction form
    13,349.34/18,422.28 = 7,380.96/x
  3. Step 3: Cross multiply
    13,349.34x = 18,422.28 × 7,380.96
  4. Step 4: Simplify right side
    13,349.34x = 135,974,111.79
  5. Step 5: Solve for x
    x = 135,974,111.79/13,349.34
  6. Step 6: Final answer
    x = 10,185.83

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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.