Home / 13,317.28-18,378.33-7,348.82

Finding the Fourth Proportional to 13,317.28, 18,378.33 and 7,348.82

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Solution

The fourth proportional to 13,317.28, 18,378.33 and 7,348.82 is: 10,141.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.28 : 18,378.33 = 7,348.82 : x
  2. Step 2: Convert to fraction form
    13,317.28/18,378.33 = 7,348.82/x
  3. Step 3: Cross multiply
    13,317.28x = 18,378.33 × 7,348.82
  4. Step 4: Simplify right side
    13,317.28x = 135,059,002.33
  5. Step 5: Solve for x
    x = 135,059,002.33/13,317.28
  6. Step 6: Final answer
    x = 10,141.64

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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.