Home / 15,202.67-20,977.12-8,488.04

Finding the Fourth Proportional to 15,202.67, 20,977.12 and 8,488.04

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Solution

The fourth proportional to 15,202.67, 20,977.12 and 8,488.04 is: 11,712.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202.67 : 20,977.12 = 8,488.04 : x
  2. Step 2: Convert to fraction form
    15,202.67/20,977.12 = 8,488.04/x
  3. Step 3: Cross multiply
    15,202.67x = 20,977.12 × 8,488.04
  4. Step 4: Simplify right side
    15,202.67x = 178,054,633.64
  5. Step 5: Solve for x
    x = 178,054,633.64/15,202.67
  6. Step 6: Final answer
    x = 11,712.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.