Home / 12,659.20-17,460.93-8,680.66

Finding the Fourth Proportional to 12,659.20, 17,460.93 and 8,680.66

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Solution

The fourth proportional to 12,659.20, 17,460.93 and 8,680.66 is: 11,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.20 : 17,460.93 = 8,680.66 : x
  2. Step 2: Convert to fraction form
    12,659.20/17,460.93 = 8,680.66/x
  3. Step 3: Cross multiply
    12,659.20x = 17,460.93 × 8,680.66
  4. Step 4: Simplify right side
    12,659.20x = 151,572,396.61
  5. Step 5: Solve for x
    x = 151,572,396.61/12,659.20
  6. Step 6: Final answer
    x = 11,973.30

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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.