Home / 17,871.32-26,818.38-12,603.08

Finding the Fourth Proportional to 17,871.32, 26,818.38 and 12,603.08

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Solution

The fourth proportional to 17,871.32, 26,818.38 and 12,603.08 is: 18,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,871.32 : 26,818.38 = 12,603.08 : x
  2. Step 2: Convert to fraction form
    17,871.32/26,818.38 = 12,603.08/x
  3. Step 3: Cross multiply
    17,871.32x = 26,818.38 × 12,603.08
  4. Step 4: Simplify right side
    17,871.32x = 337,994,188.61
  5. Step 5: Solve for x
    x = 337,994,188.61/17,871.32
  6. Step 6: Final answer
    x = 18,912.66

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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.