Home / 13,306.29-18,362.81-7,338.18

Finding the Fourth Proportional to 13,306.29, 18,362.81 and 7,338.18

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Solution

The fourth proportional to 13,306.29, 18,362.81 and 7,338.18 is: 10,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.29 : 18,362.81 = 7,338.18 : x
  2. Step 2: Convert to fraction form
    13,306.29/18,362.81 = 7,338.18/x
  3. Step 3: Cross multiply
    13,306.29x = 18,362.81 × 7,338.18
  4. Step 4: Simplify right side
    13,306.29x = 134,749,605.09
  5. Step 5: Solve for x
    x = 134,749,605.09/13,306.29
  6. Step 6: Final answer
    x = 10,126.76

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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.