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Finding the Fourth Proportional to 17,857.95, 26,750.48 and 8,469.51

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Solution

The fourth proportional to 17,857.95, 26,750.48 and 8,469.51 is: 12,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.95 : 26,750.48 = 8,469.51 : x
  2. Step 2: Convert to fraction form
    17,857.95/26,750.48 = 8,469.51/x
  3. Step 3: Cross multiply
    17,857.95x = 26,750.48 × 8,469.51
  4. Step 4: Simplify right side
    17,857.95x = 226,563,415.52
  5. Step 5: Solve for x
    x = 226,563,415.52/17,857.95
  6. Step 6: Final answer
    x = 12,686.98

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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.