Home / 13,002.15-19,505.66-5,211.57

Finding the Fourth Proportional to 13,002.15, 19,505.66 and 5,211.57

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Solution

The fourth proportional to 13,002.15, 19,505.66 and 5,211.57 is: 7,818.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,002.15 : 19,505.66 = 5,211.57 : x
  2. Step 2: Convert to fraction form
    13,002.15/19,505.66 = 5,211.57/x
  3. Step 3: Cross multiply
    13,002.15x = 19,505.66 × 5,211.57
  4. Step 4: Simplify right side
    13,002.15x = 101,655,112.49
  5. Step 5: Solve for x
    x = 101,655,112.49/13,002.15
  6. Step 6: Final answer
    x = 7,818.33

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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.