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Finding the Fourth Proportional to 17,980.38, 26,947.12 and 9,650.64

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Solution

The fourth proportional to 17,980.38, 26,947.12 and 9,650.64 is: 14,463.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,980.38 : 26,947.12 = 9,650.64 : x
  2. Step 2: Convert to fraction form
    17,980.38/26,947.12 = 9,650.64/x
  3. Step 3: Cross multiply
    17,980.38x = 26,947.12 × 9,650.64
  4. Step 4: Simplify right side
    17,980.38x = 260,056,954.16
  5. Step 5: Solve for x
    x = 260,056,954.16/17,980.38
  6. Step 6: Final answer
    x = 14,463.37

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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.