Home / 13,250.40-18,285.87-7,282.20

Finding the Fourth Proportional to 13,250.40, 18,285.87 and 7,282.20

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Solution

The fourth proportional to 13,250.40, 18,285.87 and 7,282.20 is: 10,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.40 : 18,285.87 = 7,282.20 : x
  2. Step 2: Convert to fraction form
    13,250.40/18,285.87 = 7,282.20/x
  3. Step 3: Cross multiply
    13,250.40x = 18,285.87 × 7,282.20
  4. Step 4: Simplify right side
    13,250.40x = 133,161,362.51
  5. Step 5: Solve for x
    x = 133,161,362.51/13,250.40
  6. Step 6: Final answer
    x = 10,049.61

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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.