Home / 13,394.25-18,476.37-8,356.05

Finding the Fourth Proportional to 13,394.25, 18,476.37 and 8,356.05

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Solution

The fourth proportional to 13,394.25, 18,476.37 and 8,356.05 is: 11,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.25 : 18,476.37 = 8,356.05 : x
  2. Step 2: Convert to fraction form
    13,394.25/18,476.37 = 8,356.05/x
  3. Step 3: Cross multiply
    13,394.25x = 18,476.37 × 8,356.05
  4. Step 4: Simplify right side
    13,394.25x = 154,389,471.54
  5. Step 5: Solve for x
    x = 154,389,471.54/13,394.25
  6. Step 6: Final answer
    x = 11,526.55

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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.