Home / 13,707.30-20,560.89-5,381.49

Finding the Fourth Proportional to 13,707.30, 20,560.89 and 5,381.49

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Solution

The fourth proportional to 13,707.30, 20,560.89 and 5,381.49 is: 8,072.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.30 : 20,560.89 = 5,381.49 : x
  2. Step 2: Convert to fraction form
    13,707.30/20,560.89 = 5,381.49/x
  3. Step 3: Cross multiply
    13,707.30x = 20,560.89 × 5,381.49
  4. Step 4: Simplify right side
    13,707.30x = 110,648,223.93
  5. Step 5: Solve for x
    x = 110,648,223.93/13,707.30
  6. Step 6: Final answer
    x = 8,072.21

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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.