Home / 8,408.28-11,600.82-4,870.60

Finding the Fourth Proportional to 8,408.28, 11,600.82 and 4,870.60

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Solution

The fourth proportional to 8,408.28, 11,600.82 and 4,870.60 is: 6,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.28 : 11,600.82 = 4,870.60 : x
  2. Step 2: Convert to fraction form
    8,408.28/11,600.82 = 4,870.60/x
  3. Step 3: Cross multiply
    8,408.28x = 11,600.82 × 4,870.60
  4. Step 4: Simplify right side
    8,408.28x = 56,502,953.89
  5. Step 5: Solve for x
    x = 56,502,953.89/8,408.28
  6. Step 6: Final answer
    x = 6,719.92

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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.