Home / 18,811.52-28,220.20-6,330.57

Finding the Fourth Proportional to 18,811.52, 28,220.20 and 6,330.57

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Solution

The fourth proportional to 18,811.52, 28,220.20 and 6,330.57 is: 9,496.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.52 : 28,220.20 = 6,330.57 : x
  2. Step 2: Convert to fraction form
    18,811.52/28,220.20 = 6,330.57/x
  3. Step 3: Cross multiply
    18,811.52x = 28,220.20 × 6,330.57
  4. Step 4: Simplify right side
    18,811.52x = 178,650,088.19
  5. Step 5: Solve for x
    x = 178,650,088.19/18,811.52
  6. Step 6: Final answer
    x = 9,496.84

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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.