Home / 12,690.06-19,032.01-5,294.58

Finding the Fourth Proportional to 12,690.06, 19,032.01 and 5,294.58

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Solution

The fourth proportional to 12,690.06, 19,032.01 and 5,294.58 is: 7,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.06 : 19,032.01 = 5,294.58 : x
  2. Step 2: Convert to fraction form
    12,690.06/19,032.01 = 5,294.58/x
  3. Step 3: Cross multiply
    12,690.06x = 19,032.01 × 5,294.58
  4. Step 4: Simplify right side
    12,690.06x = 100,766,414.90
  5. Step 5: Solve for x
    x = 100,766,414.90/12,690.06
  6. Step 6: Final answer
    x = 7,940.58

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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.