Home / 13,313.13-18,371.81-7,344.80

Finding the Fourth Proportional to 13,313.13, 18,371.81 and 7,344.80

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Solution

The fourth proportional to 13,313.13, 18,371.81 and 7,344.80 is: 10,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.13 : 18,371.81 = 7,344.80 : x
  2. Step 2: Convert to fraction form
    13,313.13/18,371.81 = 7,344.80/x
  3. Step 3: Cross multiply
    13,313.13x = 18,371.81 × 7,344.80
  4. Step 4: Simplify right side
    13,313.13x = 134,937,177.66
  5. Step 5: Solve for x
    x = 134,937,177.66/13,313.13
  6. Step 6: Final answer
    x = 10,135.65

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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.