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Finding the Fourth Proportional to 17,993.16, 26,989.92 and 6,897.21

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Solution

The fourth proportional to 17,993.16, 26,989.92 and 6,897.21 is: 10,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993.16 : 26,989.92 = 6,897.21 : x
  2. Step 2: Convert to fraction form
    17,993.16/26,989.92 = 6,897.21/x
  3. Step 3: Cross multiply
    17,993.16x = 26,989.92 × 6,897.21
  4. Step 4: Simplify right side
    17,993.16x = 186,155,146.12
  5. Step 5: Solve for x
    x = 186,155,146.12/17,993.16
  6. Step 6: Final answer
    x = 10,345.88

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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.