Home / 15,202.04-20,976.72-8,486.88

Finding the Fourth Proportional to 15,202.04, 20,976.72 and 8,486.88

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Solution

The fourth proportional to 15,202.04, 20,976.72 and 8,486.88 is: 11,710.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202.04 : 20,976.72 = 8,486.88 : x
  2. Step 2: Convert to fraction form
    15,202.04/20,976.72 = 8,486.88/x
  3. Step 3: Cross multiply
    15,202.04x = 20,976.72 × 8,486.88
  4. Step 4: Simplify right side
    15,202.04x = 178,026,905.43
  5. Step 5: Solve for x
    x = 178,026,905.43/15,202.04
  6. Step 6: Final answer
    x = 11,710.72

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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.