Home / 8,408.88-11,603.73-4,871.40

Finding the Fourth Proportional to 8,408.88, 11,603.73 and 4,871.40

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Solution

The fourth proportional to 8,408.88, 11,603.73 and 4,871.40 is: 6,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.88 : 11,603.73 = 4,871.40 : x
  2. Step 2: Convert to fraction form
    8,408.88/11,603.73 = 4,871.40/x
  3. Step 3: Cross multiply
    8,408.88x = 11,603.73 × 4,871.40
  4. Step 4: Simplify right side
    8,408.88x = 56,526,410.32
  5. Step 5: Solve for x
    x = 56,526,410.32/8,408.88
  6. Step 6: Final answer
    x = 6,722.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.