Home / 15,659.53-21,610.32-8,946.05

Finding the Fourth Proportional to 15,659.53, 21,610.32 and 8,946.05

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Solution

The fourth proportional to 15,659.53, 21,610.32 and 8,946.05 is: 12,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.53 : 21,610.32 = 8,946.05 : x
  2. Step 2: Convert to fraction form
    15,659.53/21,610.32 = 8,946.05/x
  3. Step 3: Cross multiply
    15,659.53x = 21,610.32 × 8,946.05
  4. Step 4: Simplify right side
    15,659.53x = 193,327,003.24
  5. Step 5: Solve for x
    x = 193,327,003.24/15,659.53
  6. Step 6: Final answer
    x = 12,345.65

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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.