Home / 10,660.64-15,991.05-4,085.25

Finding the Fourth Proportional to 10,660.64, 15,991.05 and 4,085.25

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Solution

The fourth proportional to 10,660.64, 15,991.05 and 4,085.25 is: 6,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.64 : 15,991.05 = 4,085.25 : x
  2. Step 2: Convert to fraction form
    10,660.64/15,991.05 = 4,085.25/x
  3. Step 3: Cross multiply
    10,660.64x = 15,991.05 × 4,085.25
  4. Step 4: Simplify right side
    10,660.64x = 65,327,437.01
  5. Step 5: Solve for x
    x = 65,327,437.01/10,660.64
  6. Step 6: Final answer
    x = 6,127.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.