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Finding the Fourth Proportional to 17,967.90, 26,939.05 and 6,870.30

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Solution

The fourth proportional to 17,967.90, 26,939.05 and 6,870.30 is: 10,300.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,967.90 : 26,939.05 = 6,870.30 : x
  2. Step 2: Convert to fraction form
    17,967.90/26,939.05 = 6,870.30/x
  3. Step 3: Cross multiply
    17,967.90x = 26,939.05 × 6,870.30
  4. Step 4: Simplify right side
    17,967.90x = 185,079,355.22
  5. Step 5: Solve for x
    x = 185,079,355.22/17,967.90
  6. Step 6: Final answer
    x = 10,300.56

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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.