Home / 17,605.55-26,408.34-4,278.56

Finding the Fourth Proportional to 17,605.55, 26,408.34 and 4,278.56

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Solution

The fourth proportional to 17,605.55, 26,408.34 and 4,278.56 is: 6,417.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.55 : 26,408.34 = 4,278.56 : x
  2. Step 2: Convert to fraction form
    17,605.55/26,408.34 = 4,278.56/x
  3. Step 3: Cross multiply
    17,605.55x = 26,408.34 × 4,278.56
  4. Step 4: Simplify right side
    17,605.55x = 112,989,535.15
  5. Step 5: Solve for x
    x = 112,989,535.15/17,605.55
  6. Step 6: Final answer
    x = 6,417.84

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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.