Home / 15,181.43-20,960.12-9,523.93

Finding the Fourth Proportional to 15,181.43, 20,960.12 and 9,523.93

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Solution

The fourth proportional to 15,181.43, 20,960.12 and 9,523.93 is: 13,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181.43 : 20,960.12 = 9,523.93 : x
  2. Step 2: Convert to fraction form
    15,181.43/20,960.12 = 9,523.93/x
  3. Step 3: Cross multiply
    15,181.43x = 20,960.12 × 9,523.93
  4. Step 4: Simplify right side
    15,181.43x = 199,622,672.81
  5. Step 5: Solve for x
    x = 199,622,672.81/15,181.43
  6. Step 6: Final answer
    x = 13,149.14

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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.