Home / 13,170.16-19,752.31-3,808.12

Finding the Fourth Proportional to 13,170.16, 19,752.31 and 3,808.12

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Solution

The fourth proportional to 13,170.16, 19,752.31 and 3,808.12 is: 5,711.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.16 : 19,752.31 = 3,808.12 : x
  2. Step 2: Convert to fraction form
    13,170.16/19,752.31 = 3,808.12/x
  3. Step 3: Cross multiply
    13,170.16x = 19,752.31 × 3,808.12
  4. Step 4: Simplify right side
    13,170.16x = 75,219,166.76
  5. Step 5: Solve for x
    x = 75,219,166.76/13,170.16
  6. Step 6: Final answer
    x = 5,711.33

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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.