Home / 13,250.32-18,285.88-7,282.20

Finding the Fourth Proportional to 13,250.32, 18,285.88 and 7,282.20

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Solution

The fourth proportional to 13,250.32, 18,285.88 and 7,282.20 is: 10,049.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.32 : 18,285.88 = 7,282.20 : x
  2. Step 2: Convert to fraction form
    13,250.32/18,285.88 = 7,282.20/x
  3. Step 3: Cross multiply
    13,250.32x = 18,285.88 × 7,282.20
  4. Step 4: Simplify right side
    13,250.32x = 133,161,435.34
  5. Step 5: Solve for x
    x = 133,161,435.34/13,250.32
  6. Step 6: Final answer
    x = 10,049.68

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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.