Home / 13,250.66-18,286.16-7,281.98

Finding the Fourth Proportional to 13,250.66, 18,286.16 and 7,281.98

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Solution

The fourth proportional to 13,250.66, 18,286.16 and 7,281.98 is: 10,049.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.66 : 18,286.16 = 7,281.98 : x
  2. Step 2: Convert to fraction form
    13,250.66/18,286.16 = 7,281.98/x
  3. Step 3: Cross multiply
    13,250.66x = 18,286.16 × 7,281.98
  4. Step 4: Simplify right side
    13,250.66x = 133,159,451.40
  5. Step 5: Solve for x
    x = 133,159,451.40/13,250.66
  6. Step 6: Final answer
    x = 10,049.27

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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.