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Finding the Fourth Proportional to 17,979, 26,973.82 and 9,220.06

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Solution

The fourth proportional to 17,979, 26,973.82 and 9,220.06 is: 13,832.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979 : 26,973.82 = 9,220.06 : x
  2. Step 2: Convert to fraction form
    17,979/26,973.82 = 9,220.06/x
  3. Step 3: Cross multiply
    17,979x = 26,973.82 × 9,220.06
  4. Step 4: Simplify right side
    17,979x = 248,700,238.83
  5. Step 5: Solve for x
    x = 248,700,238.83/17,979
  6. Step 6: Final answer
    x = 13,832.82

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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.