Home / 12,947.93-17,867.58-7,282.79

Finding the Fourth Proportional to 12,947.93, 17,867.58 and 7,282.79

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Solution

The fourth proportional to 12,947.93, 17,867.58 and 7,282.79 is: 10,049.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.93 : 17,867.58 = 7,282.79 : x
  2. Step 2: Convert to fraction form
    12,947.93/17,867.58 = 7,282.79/x
  3. Step 3: Cross multiply
    12,947.93x = 17,867.58 × 7,282.79
  4. Step 4: Simplify right side
    12,947.93x = 130,125,832.95
  5. Step 5: Solve for x
    x = 130,125,832.95/12,947.93
  6. Step 6: Final answer
    x = 10,049.93

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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.