Home / 17,680.60-26,507.40-8,921.80

Finding the Fourth Proportional to 17,680.60, 26,507.40 and 8,921.80

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Solution

The fourth proportional to 17,680.60, 26,507.40 and 8,921.80 is: 13,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,680.60 : 26,507.40 = 8,921.80 : x
  2. Step 2: Convert to fraction form
    17,680.60/26,507.40 = 8,921.80/x
  3. Step 3: Cross multiply
    17,680.60x = 26,507.40 × 8,921.80
  4. Step 4: Simplify right side
    17,680.60x = 236,493,721.32
  5. Step 5: Solve for x
    x = 236,493,721.32/17,680.60
  6. Step 6: Final answer
    x = 13,375.89

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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.