Home / 13,316.60-18,377.94-7,348.79

Finding the Fourth Proportional to 13,316.60, 18,377.94 and 7,348.79

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Solution

The fourth proportional to 13,316.60, 18,377.94 and 7,348.79 is: 10,141.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.60 : 18,377.94 = 7,348.79 : x
  2. Step 2: Convert to fraction form
    13,316.60/18,377.94 = 7,348.79/x
  3. Step 3: Cross multiply
    13,316.60x = 18,377.94 × 7,348.79
  4. Step 4: Simplify right side
    13,316.60x = 135,055,529.80
  5. Step 5: Solve for x
    x = 135,055,529.80/13,316.60
  6. Step 6: Final answer
    x = 10,141.90

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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.