Home / 12,849.31-19,260.84-7,290.91

Finding the Fourth Proportional to 12,849.31, 19,260.84 and 7,290.91

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Solution

The fourth proportional to 12,849.31, 19,260.84 and 7,290.91 is: 10,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.31 : 19,260.84 = 7,290.91 : x
  2. Step 2: Convert to fraction form
    12,849.31/19,260.84 = 7,290.91/x
  3. Step 3: Cross multiply
    12,849.31x = 19,260.84 × 7,290.91
  4. Step 4: Simplify right side
    12,849.31x = 140,429,062.66
  5. Step 5: Solve for x
    x = 140,429,062.66/12,849.31
  6. Step 6: Final answer
    x = 10,928.92

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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.