Home / 18,828.83-25,981.85-11,274.98

Finding the Fourth Proportional to 18,828.83, 25,981.85 and 11,274.98

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Solution

The fourth proportional to 18,828.83, 25,981.85 and 11,274.98 is: 15,558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.83 : 25,981.85 = 11,274.98 : x
  2. Step 2: Convert to fraction form
    18,828.83/25,981.85 = 11,274.98/x
  3. Step 3: Cross multiply
    18,828.83x = 25,981.85 × 11,274.98
  4. Step 4: Simplify right side
    18,828.83x = 292,944,839.11
  5. Step 5: Solve for x
    x = 292,944,839.11/18,828.83
  6. Step 6: Final answer
    x = 15,558.31

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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.