Home / 13,170.71-19,756.08-5,379.52

Finding the Fourth Proportional to 13,170.71, 19,756.08 and 5,379.52

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Solution

The fourth proportional to 13,170.71, 19,756.08 and 5,379.52 is: 8,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.71 : 19,756.08 = 5,379.52 : x
  2. Step 2: Convert to fraction form
    13,170.71/19,756.08 = 5,379.52/x
  3. Step 3: Cross multiply
    13,170.71x = 19,756.08 × 5,379.52
  4. Step 4: Simplify right side
    13,170.71x = 106,278,200.58
  5. Step 5: Solve for x
    x = 106,278,200.58/13,170.71
  6. Step 6: Final answer
    x = 8,069.29

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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.