Home / 13,922.22-19,238.10-10,138.80

Finding the Fourth Proportional to 13,922.22, 19,238.10 and 10,138.80

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Solution

The fourth proportional to 13,922.22, 19,238.10 and 10,138.80 is: 14,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.22 : 19,238.10 = 10,138.80 : x
  2. Step 2: Convert to fraction form
    13,922.22/19,238.10 = 10,138.80/x
  3. Step 3: Cross multiply
    13,922.22x = 19,238.10 × 10,138.80
  4. Step 4: Simplify right side
    13,922.22x = 195,051,248.28
  5. Step 5: Solve for x
    x = 195,051,248.28/13,922.22
  6. Step 6: Final answer
    x = 14,010.07

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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.