Home / 13,749.59-18,989.98-9,265.56

Finding the Fourth Proportional to 13,749.59, 18,989.98 and 9,265.56

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Solution

The fourth proportional to 13,749.59, 18,989.98 and 9,265.56 is: 12,796.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.59 : 18,989.98 = 9,265.56 : x
  2. Step 2: Convert to fraction form
    13,749.59/18,989.98 = 9,265.56/x
  3. Step 3: Cross multiply
    13,749.59x = 18,989.98 × 9,265.56
  4. Step 4: Simplify right side
    13,749.59x = 175,952,799.09
  5. Step 5: Solve for x
    x = 175,952,799.09/13,749.59
  6. Step 6: Final answer
    x = 12,796.95

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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.