Home / 18,880.18-28,318.44-5,732.66

Finding the Fourth Proportional to 18,880.18, 28,318.44 and 5,732.66

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Solution

The fourth proportional to 18,880.18, 28,318.44 and 5,732.66 is: 8,598.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.18 : 28,318.44 = 5,732.66 : x
  2. Step 2: Convert to fraction form
    18,880.18/28,318.44 = 5,732.66/x
  3. Step 3: Cross multiply
    18,880.18x = 28,318.44 × 5,732.66
  4. Step 4: Simplify right side
    18,880.18x = 162,339,988.25
  5. Step 5: Solve for x
    x = 162,339,988.25/18,880.18
  6. Step 6: Final answer
    x = 8,598.43

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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.