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Finding the Fourth Proportional to 18,668.13, 28,002.19 and 6,356.13

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Solution

The fourth proportional to 18,668.13, 28,002.19 and 6,356.13 is: 9,534.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.13 : 28,002.19 = 6,356.13 : x
  2. Step 2: Convert to fraction form
    18,668.13/28,002.19 = 6,356.13/x
  3. Step 3: Cross multiply
    18,668.13x = 28,002.19 × 6,356.13
  4. Step 4: Simplify right side
    18,668.13x = 177,985,559.92
  5. Step 5: Solve for x
    x = 177,985,559.92/18,668.13
  6. Step 6: Final answer
    x = 9,534.19

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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.