Home / 18,808.60-28,214.32-6,328.66

Finding the Fourth Proportional to 18,808.60, 28,214.32 and 6,328.66

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Solution

The fourth proportional to 18,808.60, 28,214.32 and 6,328.66 is: 9,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808.60 : 28,214.32 = 6,328.66 : x
  2. Step 2: Convert to fraction form
    18,808.60/28,214.32 = 6,328.66/x
  3. Step 3: Cross multiply
    18,808.60x = 28,214.32 × 6,328.66
  4. Step 4: Simplify right side
    18,808.60x = 178,558,838.41
  5. Step 5: Solve for x
    x = 178,558,838.41/18,808.60
  6. Step 6: Final answer
    x = 9,493.47

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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.