Home / 13,172.33-19,758.51-5,381.15

Finding the Fourth Proportional to 13,172.33, 19,758.51 and 5,381.15

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Solution

The fourth proportional to 13,172.33, 19,758.51 and 5,381.15 is: 8,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.33 : 19,758.51 = 5,381.15 : x
  2. Step 2: Convert to fraction form
    13,172.33/19,758.51 = 5,381.15/x
  3. Step 3: Cross multiply
    13,172.33x = 19,758.51 × 5,381.15
  4. Step 4: Simplify right side
    13,172.33x = 106,323,407.29
  5. Step 5: Solve for x
    x = 106,323,407.29/13,172.33
  6. Step 6: Final answer
    x = 8,071.73

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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.