Home / 12,949.92-17,870.79-7,284.66

Finding the Fourth Proportional to 12,949.92, 17,870.79 and 7,284.66

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Solution

The fourth proportional to 12,949.92, 17,870.79 and 7,284.66 is: 10,052.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.92 : 17,870.79 = 7,284.66 : x
  2. Step 2: Convert to fraction form
    12,949.92/17,870.79 = 7,284.66/x
  3. Step 3: Cross multiply
    12,949.92x = 17,870.79 × 7,284.66
  4. Step 4: Simplify right side
    12,949.92x = 130,182,629.08
  5. Step 5: Solve for x
    x = 130,182,629.08/12,949.92
  6. Step 6: Final answer
    x = 10,052.77

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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.