Home / 13,580.16-20,343.92-7,944.18

Finding the Fourth Proportional to 13,580.16, 20,343.92 and 7,944.18

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Solution

The fourth proportional to 13,580.16, 20,343.92 and 7,944.18 is: 11,900.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.16 : 20,343.92 = 7,944.18 : x
  2. Step 2: Convert to fraction form
    13,580.16/20,343.92 = 7,944.18/x
  3. Step 3: Cross multiply
    13,580.16x = 20,343.92 × 7,944.18
  4. Step 4: Simplify right side
    13,580.16x = 161,615,722.66
  5. Step 5: Solve for x
    x = 161,615,722.66/13,580.16
  6. Step 6: Final answer
    x = 11,900.87

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1.5x scale

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.