Home / 10,408.89-15,603.48-4,172.79

Finding the Fourth Proportional to 10,408.89, 15,603.48 and 4,172.79

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Solution

The fourth proportional to 10,408.89, 15,603.48 and 4,172.79 is: 6,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.89 : 15,603.48 = 4,172.79 : x
  2. Step 2: Convert to fraction form
    10,408.89/15,603.48 = 4,172.79/x
  3. Step 3: Cross multiply
    10,408.89x = 15,603.48 × 4,172.79
  4. Step 4: Simplify right side
    10,408.89x = 65,110,045.31
  5. Step 5: Solve for x
    x = 65,110,045.31/10,408.89
  6. Step 6: Final answer
    x = 6,255.23

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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.