Home / 13,370.11-20,091.51-7,134.53

Finding the Fourth Proportional to 13,370.11, 20,091.51 and 7,134.53

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Solution

The fourth proportional to 13,370.11, 20,091.51 and 7,134.53 is: 10,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.11 : 20,091.51 = 7,134.53 : x
  2. Step 2: Convert to fraction form
    13,370.11/20,091.51 = 7,134.53/x
  3. Step 3: Cross multiply
    13,370.11x = 20,091.51 × 7,134.53
  4. Step 4: Simplify right side
    13,370.11x = 143,343,380.38
  5. Step 5: Solve for x
    x = 143,343,380.38/13,370.11
  6. Step 6: Final answer
    x = 10,721.18

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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.