Home / 13,170.39-19,757.40-5,377.38

Finding the Fourth Proportional to 13,170.39, 19,757.40 and 5,377.38

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Solution

The fourth proportional to 13,170.39, 19,757.40 and 5,377.38 is: 8,066.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.39 : 19,757.40 = 5,377.38 : x
  2. Step 2: Convert to fraction form
    13,170.39/19,757.40 = 5,377.38/x
  3. Step 3: Cross multiply
    13,170.39x = 19,757.40 × 5,377.38
  4. Step 4: Simplify right side
    13,170.39x = 106,243,047.61
  5. Step 5: Solve for x
    x = 106,243,047.61/13,170.39
  6. Step 6: Final answer
    x = 8,066.81

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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.