Home / 13,799.40-18,918.92-13,550.70

Finding the Fourth Proportional to 13,799.40, 18,918.92 and 13,550.70

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Solution

The fourth proportional to 13,799.40, 18,918.92 and 13,550.70 is: 18,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.40 : 18,918.92 = 13,550.70 : x
  2. Step 2: Convert to fraction form
    13,799.40/18,918.92 = 13,550.70/x
  3. Step 3: Cross multiply
    13,799.40x = 18,918.92 × 13,550.70
  4. Step 4: Simplify right side
    13,799.40x = 256,364,541.49
  5. Step 5: Solve for x
    x = 256,364,541.49/13,799.40
  6. Step 6: Final answer
    x = 18,577.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.