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Finding the Fourth Proportional to 17,967.78, 26,956.98 and 9,208.80

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Solution

The fourth proportional to 17,967.78, 26,956.98 and 9,208.80 is: 13,815.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,967.78 : 26,956.98 = 9,208.80 : x
  2. Step 2: Convert to fraction form
    17,967.78/26,956.98 = 9,208.80/x
  3. Step 3: Cross multiply
    17,967.78x = 26,956.98 × 9,208.80
  4. Step 4: Simplify right side
    17,967.78x = 248,241,437.42
  5. Step 5: Solve for x
    x = 248,241,437.42/17,967.78
  6. Step 6: Final answer
    x = 13,815.92

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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.