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Finding the Fourth Proportional to 17,989.74, 26,983.65 and 5,509.77

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Solution

The fourth proportional to 17,989.74, 26,983.65 and 5,509.77 is: 8,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.74 : 26,983.65 = 5,509.77 : x
  2. Step 2: Convert to fraction form
    17,989.74/26,983.65 = 5,509.77/x
  3. Step 3: Cross multiply
    17,989.74x = 26,983.65 × 5,509.77
  4. Step 4: Simplify right side
    17,989.74x = 148,673,705.26
  5. Step 5: Solve for x
    x = 148,673,705.26/17,989.74
  6. Step 6: Final answer
    x = 8,264.36

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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.