Home / 18,957.48-26,147.22-13,920.12

Finding the Fourth Proportional to 18,957.48, 26,147.22 and 13,920.12

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Solution

The fourth proportional to 18,957.48, 26,147.22 and 13,920.12 is: 19,199.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.48 : 26,147.22 = 13,920.12 : x
  2. Step 2: Convert to fraction form
    18,957.48/26,147.22 = 13,920.12/x
  3. Step 3: Cross multiply
    18,957.48x = 26,147.22 × 13,920.12
  4. Step 4: Simplify right side
    18,957.48x = 363,972,440.07
  5. Step 5: Solve for x
    x = 363,972,440.07/18,957.48
  6. Step 6: Final answer
    x = 19,199.41

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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.