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Finding the Fourth Proportional to 17,600.20, 26,400.30 and 7,219.40

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Solution

The fourth proportional to 17,600.20, 26,400.30 and 7,219.40 is: 10,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,600.20 : 26,400.30 = 7,219.40 : x
  2. Step 2: Convert to fraction form
    17,600.20/26,400.30 = 7,219.40/x
  3. Step 3: Cross multiply
    17,600.20x = 26,400.30 × 7,219.40
  4. Step 4: Simplify right side
    17,600.20x = 190,594,325.82
  5. Step 5: Solve for x
    x = 190,594,325.82/17,600.20
  6. Step 6: Final answer
    x = 10,829.10

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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.