Home / 13,282.38-18,328.28-7,313.69

Finding the Fourth Proportional to 13,282.38, 18,328.28 and 7,313.69

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Solution

The fourth proportional to 13,282.38, 18,328.28 and 7,313.69 is: 10,092.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.38 : 18,328.28 = 7,313.69 : x
  2. Step 2: Convert to fraction form
    13,282.38/18,328.28 = 7,313.69/x
  3. Step 3: Cross multiply
    13,282.38x = 18,328.28 × 7,313.69
  4. Step 4: Simplify right side
    13,282.38x = 134,047,367.41
  5. Step 5: Solve for x
    x = 134,047,367.41/13,282.38
  6. Step 6: Final answer
    x = 10,092.12

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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.