Home / 13,306.12-19,960.06-5,515.56

Finding the Fourth Proportional to 13,306.12, 19,960.06 and 5,515.56

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Solution

The fourth proportional to 13,306.12, 19,960.06 and 5,515.56 is: 8,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.12 : 19,960.06 = 5,515.56 : x
  2. Step 2: Convert to fraction form
    13,306.12/19,960.06 = 5,515.56/x
  3. Step 3: Cross multiply
    13,306.12x = 19,960.06 × 5,515.56
  4. Step 4: Simplify right side
    13,306.12x = 110,090,908.53
  5. Step 5: Solve for x
    x = 110,090,908.53/13,306.12
  6. Step 6: Final answer
    x = 8,273.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.