Home / 13,369.59-18,452.05-7,705.18

Finding the Fourth Proportional to 13,369.59, 18,452.05 and 7,705.18

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Solution

The fourth proportional to 13,369.59, 18,452.05 and 7,705.18 is: 10,634.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.59 : 18,452.05 = 7,705.18 : x
  2. Step 2: Convert to fraction form
    13,369.59/18,452.05 = 7,705.18/x
  3. Step 3: Cross multiply
    13,369.59x = 18,452.05 × 7,705.18
  4. Step 4: Simplify right side
    13,369.59x = 142,176,309.97
  5. Step 5: Solve for x
    x = 142,176,309.97/13,369.59
  6. Step 6: Final answer
    x = 10,634.31

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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.