Home / 15,670.60-21,625.60-8,596.88

Finding the Fourth Proportional to 15,670.60, 21,625.60 and 8,596.88

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Solution

The fourth proportional to 15,670.60, 21,625.60 and 8,596.88 is: 11,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,670.60 : 21,625.60 = 8,596.88 : x
  2. Step 2: Convert to fraction form
    15,670.60/21,625.60 = 8,596.88/x
  3. Step 3: Cross multiply
    15,670.60x = 21,625.60 × 8,596.88
  4. Step 4: Simplify right side
    15,670.60x = 185,912,688.13
  5. Step 5: Solve for x
    x = 185,912,688.13/15,670.60
  6. Step 6: Final answer
    x = 11,863.79

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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.