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Finding the Fourth Proportional to 18,613.46, 27,920.19 and 6,300.50

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Solution

The fourth proportional to 18,613.46, 27,920.19 and 6,300.50 is: 9,450.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.46 : 27,920.19 = 6,300.50 : x
  2. Step 2: Convert to fraction form
    18,613.46/27,920.19 = 6,300.50/x
  3. Step 3: Cross multiply
    18,613.46x = 27,920.19 × 6,300.50
  4. Step 4: Simplify right side
    18,613.46x = 175,911,157.10
  5. Step 5: Solve for x
    x = 175,911,157.10/18,613.46
  6. Step 6: Final answer
    x = 9,450.75

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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.