Home / 12,528.12-17,288.81-6,863.22

Finding the Fourth Proportional to 12,528.12, 17,288.81 and 6,863.22

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Solution

The fourth proportional to 12,528.12, 17,288.81 and 6,863.22 is: 9,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.12 : 17,288.81 = 6,863.22 : x
  2. Step 2: Convert to fraction form
    12,528.12/17,288.81 = 6,863.22/x
  3. Step 3: Cross multiply
    12,528.12x = 17,288.81 × 6,863.22
  4. Step 4: Simplify right side
    12,528.12x = 118,656,923.73
  5. Step 5: Solve for x
    x = 118,656,923.73/12,528.12
  6. Step 6: Final answer
    x = 9,471.25

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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.