Home / 18,867.60-28,284.66-9,495.36

Finding the Fourth Proportional to 18,867.60, 28,284.66 and 9,495.36

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Solution

The fourth proportional to 18,867.60, 28,284.66 and 9,495.36 is: 14,234.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.60 : 28,284.66 = 9,495.36 : x
  2. Step 2: Convert to fraction form
    18,867.60/28,284.66 = 9,495.36/x
  3. Step 3: Cross multiply
    18,867.60x = 28,284.66 × 9,495.36
  4. Step 4: Simplify right side
    18,867.60x = 268,573,029.18
  5. Step 5: Solve for x
    x = 268,573,029.18/18,867.60
  6. Step 6: Final answer
    x = 14,234.62

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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.