Home / 13,827.92-19,082.12-7,860.24

Finding the Fourth Proportional to 13,827.92, 19,082.12 and 7,860.24

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Solution

The fourth proportional to 13,827.92, 19,082.12 and 7,860.24 is: 10,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.92 : 19,082.12 = 7,860.24 : x
  2. Step 2: Convert to fraction form
    13,827.92/19,082.12 = 7,860.24/x
  3. Step 3: Cross multiply
    13,827.92x = 19,082.12 × 7,860.24
  4. Step 4: Simplify right side
    13,827.92x = 149,990,042.91
  5. Step 5: Solve for x
    x = 149,990,042.91/13,827.92
  6. Step 6: Final answer
    x = 10,846.90

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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.