Home / 13,273.68-18,318.12-7,305.72

Finding the Fourth Proportional to 13,273.68, 18,318.12 and 7,305.72

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Solution

The fourth proportional to 13,273.68, 18,318.12 and 7,305.72 is: 10,082.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.68 : 18,318.12 = 7,305.72 : x
  2. Step 2: Convert to fraction form
    13,273.68/18,318.12 = 7,305.72/x
  3. Step 3: Cross multiply
    13,273.68x = 18,318.12 × 7,305.72
  4. Step 4: Simplify right side
    13,273.68x = 133,827,055.65
  5. Step 5: Solve for x
    x = 133,827,055.65/13,273.68
  6. Step 6: Final answer
    x = 10,082.14

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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.