Home / 19,169.80-26,426.46-13,855.12

Finding the Fourth Proportional to 19,169.80, 26,426.46 and 13,855.12

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Solution

The fourth proportional to 19,169.80, 26,426.46 and 13,855.12 is: 19,099.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.80 : 26,426.46 = 13,855.12 : x
  2. Step 2: Convert to fraction form
    19,169.80/26,426.46 = 13,855.12/x
  3. Step 3: Cross multiply
    19,169.80x = 26,426.46 × 13,855.12
  4. Step 4: Simplify right side
    19,169.80x = 366,141,774.48
  5. Step 5: Solve for x
    x = 366,141,774.48/19,169.80
  6. Step 6: Final answer
    x = 19,099.93

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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.