Home / 15,452.66-21,324.46-8,378.93

Finding the Fourth Proportional to 15,452.66, 21,324.46 and 8,378.93

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Solution

The fourth proportional to 15,452.66, 21,324.46 and 8,378.93 is: 11,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.66 : 21,324.46 = 8,378.93 : x
  2. Step 2: Convert to fraction form
    15,452.66/21,324.46 = 8,378.93/x
  3. Step 3: Cross multiply
    15,452.66x = 21,324.46 × 8,378.93
  4. Step 4: Simplify right side
    15,452.66x = 178,676,157.63
  5. Step 5: Solve for x
    x = 178,676,157.63/15,452.66
  6. Step 6: Final answer
    x = 11,562.81

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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.