Home / 8,408.28-11,600.88-4,871.40

Finding the Fourth Proportional to 8,408.28, 11,600.88 and 4,871.40

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Solution

The fourth proportional to 8,408.28, 11,600.88 and 4,871.40 is: 6,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.28 : 11,600.88 = 4,871.40 : x
  2. Step 2: Convert to fraction form
    8,408.28/11,600.88 = 4,871.40/x
  3. Step 3: Cross multiply
    8,408.28x = 11,600.88 × 4,871.40
  4. Step 4: Simplify right side
    8,408.28x = 56,512,526.83
  5. Step 5: Solve for x
    x = 56,512,526.83/8,408.28
  6. Step 6: Final answer
    x = 6,721.06

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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.