Home / 15,344.56-21,083.72-12,195.28

Finding the Fourth Proportional to 15,344.56, 21,083.72 and 12,195.28

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Solution

The fourth proportional to 15,344.56, 21,083.72 and 12,195.28 is: 16,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344.56 : 21,083.72 = 12,195.28 : x
  2. Step 2: Convert to fraction form
    15,344.56/21,083.72 = 12,195.28/x
  3. Step 3: Cross multiply
    15,344.56x = 21,083.72 × 12,195.28
  4. Step 4: Simplify right side
    15,344.56x = 257,121,763.42
  5. Step 5: Solve for x
    x = 257,121,763.42/15,344.56
  6. Step 6: Final answer
    x = 16,756.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.