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Finding the Fourth Proportional to 17,620.12, 26,410.02 and 7,219

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Solution

The fourth proportional to 17,620.12, 26,410.02 and 7,219 is: 10,820.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.12 : 26,410.02 = 7,219 : x
  2. Step 2: Convert to fraction form
    17,620.12/26,410.02 = 7,219/x
  3. Step 3: Cross multiply
    17,620.12x = 26,410.02 × 7,219
  4. Step 4: Simplify right side
    17,620.12x = 190,653,934.38
  5. Step 5: Solve for x
    x = 190,653,934.38/17,620.12
  6. Step 6: Final answer
    x = 10,820.24

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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.