Home / 18,788.20-25,927.75-10,830.97

Finding the Fourth Proportional to 18,788.20, 25,927.75 and 10,830.97

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Solution

The fourth proportional to 18,788.20, 25,927.75 and 10,830.97 is: 14,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.20 : 25,927.75 = 10,830.97 : x
  2. Step 2: Convert to fraction form
    18,788.20/25,927.75 = 10,830.97/x
  3. Step 3: Cross multiply
    18,788.20x = 25,927.75 × 10,830.97
  4. Step 4: Simplify right side
    18,788.20x = 280,822,521.60
  5. Step 5: Solve for x
    x = 280,822,521.60/18,788.20
  6. Step 6: Final answer
    x = 14,946.75

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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.