Home / 12,891.72-19,340.01-7,045.14

Finding the Fourth Proportional to 12,891.72, 19,340.01 and 7,045.14

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Solution

The fourth proportional to 12,891.72, 19,340.01 and 7,045.14 is: 10,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891.72 : 19,340.01 = 7,045.14 : x
  2. Step 2: Convert to fraction form
    12,891.72/19,340.01 = 7,045.14/x
  3. Step 3: Cross multiply
    12,891.72x = 19,340.01 × 7,045.14
  4. Step 4: Simplify right side
    12,891.72x = 136,253,078.05
  5. Step 5: Solve for x
    x = 136,253,078.05/12,891.72
  6. Step 6: Final answer
    x = 10,569.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.