Home / 18,712.44-28,068.84-8,823.60

Finding the Fourth Proportional to 18,712.44, 28,068.84 and 8,823.60

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Solution

The fourth proportional to 18,712.44, 28,068.84 and 8,823.60 is: 13,235.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.44 : 28,068.84 = 8,823.60 : x
  2. Step 2: Convert to fraction form
    18,712.44/28,068.84 = 8,823.60/x
  3. Step 3: Cross multiply
    18,712.44x = 28,068.84 × 8,823.60
  4. Step 4: Simplify right side
    18,712.44x = 247,668,216.62
  5. Step 5: Solve for x
    x = 247,668,216.62/18,712.44
  6. Step 6: Final answer
    x = 13,235.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.