Home / 13,599.27-18,766.97-7,631.49

Finding the Fourth Proportional to 13,599.27, 18,766.97 and 7,631.49

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Solution

The fourth proportional to 13,599.27, 18,766.97 and 7,631.49 is: 10,531.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.27 : 18,766.97 = 7,631.49 : x
  2. Step 2: Convert to fraction form
    13,599.27/18,766.97 = 7,631.49/x
  3. Step 3: Cross multiply
    13,599.27x = 18,766.97 × 7,631.49
  4. Step 4: Simplify right side
    13,599.27x = 143,220,004.72
  5. Step 5: Solve for x
    x = 143,220,004.72/13,599.27
  6. Step 6: Final answer
    x = 10,531.45

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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.