Home / 13,216.25-18,238.83-7,248.17

Finding the Fourth Proportional to 13,216.25, 18,238.83 and 7,248.17

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Solution

The fourth proportional to 13,216.25, 18,238.83 and 7,248.17 is: 10,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.25 : 18,238.83 = 7,248.17 : x
  2. Step 2: Convert to fraction form
    13,216.25/18,238.83 = 7,248.17/x
  3. Step 3: Cross multiply
    13,216.25x = 18,238.83 × 7,248.17
  4. Step 4: Simplify right side
    13,216.25x = 132,198,140.44
  5. Step 5: Solve for x
    x = 132,198,140.44/13,216.25
  6. Step 6: Final answer
    x = 10,002.70

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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.