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Finding the Fourth Proportional to 17,986.71, 26,980.10 and 6,297.20

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Solution

The fourth proportional to 17,986.71, 26,980.10 and 6,297.20 is: 9,445.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.71 : 26,980.10 = 6,297.20 : x
  2. Step 2: Convert to fraction form
    17,986.71/26,980.10 = 6,297.20/x
  3. Step 3: Cross multiply
    17,986.71x = 26,980.10 × 6,297.20
  4. Step 4: Simplify right side
    17,986.71x = 169,899,085.72
  5. Step 5: Solve for x
    x = 169,899,085.72/17,986.71
  6. Step 6: Final answer
    x = 9,445.81

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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.