Home / 19,122.11-26,391.36-13,762.28

Finding the Fourth Proportional to 19,122.11, 26,391.36 and 13,762.28

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Solution

The fourth proportional to 19,122.11, 26,391.36 and 13,762.28 is: 18,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.11 : 26,391.36 = 13,762.28 : x
  2. Step 2: Convert to fraction form
    19,122.11/26,391.36 = 13,762.28/x
  3. Step 3: Cross multiply
    19,122.11x = 26,391.36 × 13,762.28
  4. Step 4: Simplify right side
    19,122.11x = 363,205,153.94
  5. Step 5: Solve for x
    x = 363,205,153.94/19,122.11
  6. Step 6: Final answer
    x = 18,993.99

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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.