Home / 13,250.72-18,285.68-7,282.32

Finding the Fourth Proportional to 13,250.72, 18,285.68 and 7,282.32

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Solution

The fourth proportional to 13,250.72, 18,285.68 and 7,282.32 is: 10,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.72 : 18,285.68 = 7,282.32 : x
  2. Step 2: Convert to fraction form
    13,250.72/18,285.68 = 7,282.32/x
  3. Step 3: Cross multiply
    13,250.72x = 18,285.68 × 7,282.32
  4. Step 4: Simplify right side
    13,250.72x = 133,162,173.18
  5. Step 5: Solve for x
    x = 133,162,173.18/13,250.72
  6. Step 6: Final answer
    x = 10,049.43

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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.