Home / 15,176.82-20,943.96-9,126.12

Finding the Fourth Proportional to 15,176.82, 20,943.96 and 9,126.12

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Solution

The fourth proportional to 15,176.82, 20,943.96 and 9,126.12 is: 12,594.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176.82 : 20,943.96 = 9,126.12 : x
  2. Step 2: Convert to fraction form
    15,176.82/20,943.96 = 9,126.12/x
  3. Step 3: Cross multiply
    15,176.82x = 20,943.96 × 9,126.12
  4. Step 4: Simplify right side
    15,176.82x = 191,137,092.24
  5. Step 5: Solve for x
    x = 191,137,092.24/15,176.82
  6. Step 6: Final answer
    x = 12,594.01

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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.