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Finding the Fourth Proportional to 17,639.44, 26,448.51 and 8,281.51

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Solution

The fourth proportional to 17,639.44, 26,448.51 and 8,281.51 is: 12,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,639.44 : 26,448.51 = 8,281.51 : x
  2. Step 2: Convert to fraction form
    17,639.44/26,448.51 = 8,281.51/x
  3. Step 3: Cross multiply
    17,639.44x = 26,448.51 × 8,281.51
  4. Step 4: Simplify right side
    17,639.44x = 219,033,600.05
  5. Step 5: Solve for x
    x = 219,033,600.05/17,639.44
  6. Step 6: Final answer
    x = 12,417.26

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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.