Home / 18,720.18-28,084.46-7,033.50

Finding the Fourth Proportional to 18,720.18, 28,084.46 and 7,033.50

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Solution

The fourth proportional to 18,720.18, 28,084.46 and 7,033.50 is: 10,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.18 : 28,084.46 = 7,033.50 : x
  2. Step 2: Convert to fraction form
    18,720.18/28,084.46 = 7,033.50/x
  3. Step 3: Cross multiply
    18,720.18x = 28,084.46 × 7,033.50
  4. Step 4: Simplify right side
    18,720.18x = 197,532,049.41
  5. Step 5: Solve for x
    x = 197,532,049.41/18,720.18
  6. Step 6: Final answer
    x = 10,551.82

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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.