Home / 13,360.62-18,438.56-7,696.86

Finding the Fourth Proportional to 13,360.62, 18,438.56 and 7,696.86

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Solution

The fourth proportional to 13,360.62, 18,438.56 and 7,696.86 is: 10,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.62 : 18,438.56 = 7,696.86 : x
  2. Step 2: Convert to fraction form
    13,360.62/18,438.56 = 7,696.86/x
  3. Step 3: Cross multiply
    13,360.62x = 18,438.56 × 7,696.86
  4. Step 4: Simplify right side
    13,360.62x = 141,919,014.92
  5. Step 5: Solve for x
    x = 141,919,014.92/13,360.62
  6. Step 6: Final answer
    x = 10,622.19

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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.