Home / 13,274.81-18,318.79-7,306.39

Finding the Fourth Proportional to 13,274.81, 18,318.79 and 7,306.39

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Solution

The fourth proportional to 13,274.81, 18,318.79 and 7,306.39 is: 10,082.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.81 : 18,318.79 = 7,306.39 : x
  2. Step 2: Convert to fraction form
    13,274.81/18,318.79 = 7,306.39/x
  3. Step 3: Cross multiply
    13,274.81x = 18,318.79 × 7,306.39
  4. Step 4: Simplify right side
    13,274.81x = 133,844,224.07
  5. Step 5: Solve for x
    x = 133,844,224.07/13,274.81
  6. Step 6: Final answer
    x = 10,082.57

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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.