Home / 15,659.96-21,610.71-8,586.83

Finding the Fourth Proportional to 15,659.96, 21,610.71 and 8,586.83

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Solution

The fourth proportional to 15,659.96, 21,610.71 and 8,586.83 is: 11,849.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.96 : 21,610.71 = 8,586.83 : x
  2. Step 2: Convert to fraction form
    15,659.96/21,610.71 = 8,586.83/x
  3. Step 3: Cross multiply
    15,659.96x = 21,610.71 × 8,586.83
  4. Step 4: Simplify right side
    15,659.96x = 185,567,492.95
  5. Step 5: Solve for x
    x = 185,567,492.95/15,659.96
  6. Step 6: Final answer
    x = 11,849.81

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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.