Home / 19,367.70-26,728.02-13,712.58

Finding the Fourth Proportional to 19,367.70, 26,728.02 and 13,712.58

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Solution

The fourth proportional to 19,367.70, 26,728.02 and 13,712.58 is: 18,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,367.70 : 26,728.02 = 13,712.58 : x
  2. Step 2: Convert to fraction form
    19,367.70/26,728.02 = 13,712.58/x
  3. Step 3: Cross multiply
    19,367.70x = 26,728.02 × 13,712.58
  4. Step 4: Simplify right side
    19,367.70x = 366,510,112.49
  5. Step 5: Solve for x
    x = 366,510,112.49/19,367.70
  6. Step 6: Final answer
    x = 18,923.78

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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.