Home / 15,749.04-21,734.28-8,676.48

Finding the Fourth Proportional to 15,749.04, 21,734.28 and 8,676.48

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Solution

The fourth proportional to 15,749.04, 21,734.28 and 8,676.48 is: 11,973.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.04 : 21,734.28 = 8,676.48 : x
  2. Step 2: Convert to fraction form
    15,749.04/21,734.28 = 8,676.48/x
  3. Step 3: Cross multiply
    15,749.04x = 21,734.28 × 8,676.48
  4. Step 4: Simplify right side
    15,749.04x = 188,577,045.73
  5. Step 5: Solve for x
    x = 188,577,045.73/15,749.04
  6. Step 6: Final answer
    x = 11,973.88

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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.