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Finding the Fourth Proportional to 17,889.80, 26,848.20 and 9,132.08

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Solution

The fourth proportional to 17,889.80, 26,848.20 and 9,132.08 is: 13,705.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,889.80 : 26,848.20 = 9,132.08 : x
  2. Step 2: Convert to fraction form
    17,889.80/26,848.20 = 9,132.08/x
  3. Step 3: Cross multiply
    17,889.80x = 26,848.20 × 9,132.08
  4. Step 4: Simplify right side
    17,889.80x = 245,179,910.26
  5. Step 5: Solve for x
    x = 245,179,910.26/17,889.80
  6. Step 6: Final answer
    x = 13,705.01

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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.