Home / 19,399.92-26,750.70-13,101.36

Finding the Fourth Proportional to 19,399.92, 26,750.70 and 13,101.36

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Solution

The fourth proportional to 19,399.92, 26,750.70 and 13,101.36 is: 18,065.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.92 : 26,750.70 = 13,101.36 : x
  2. Step 2: Convert to fraction form
    19,399.92/26,750.70 = 13,101.36/x
  3. Step 3: Cross multiply
    19,399.92x = 26,750.70 × 13,101.36
  4. Step 4: Simplify right side
    19,399.92x = 350,470,550.95
  5. Step 5: Solve for x
    x = 350,470,550.95/19,399.92
  6. Step 6: Final answer
    x = 18,065.57

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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.