Home / 18,788.62-25,928.12-10,830.68

Finding the Fourth Proportional to 18,788.62, 25,928.12 and 10,830.68

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Solution

The fourth proportional to 18,788.62, 25,928.12 and 10,830.68 is: 14,946.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.62 : 25,928.12 = 10,830.68 : x
  2. Step 2: Convert to fraction form
    18,788.62/25,928.12 = 10,830.68/x
  3. Step 3: Cross multiply
    18,788.62x = 25,928.12 × 10,830.68
  4. Step 4: Simplify right side
    18,788.62x = 280,819,170.72
  5. Step 5: Solve for x
    x = 280,819,170.72/18,788.62
  6. Step 6: Final answer
    x = 14,946.24

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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.