Home / 8,601.28-11,870-6,087.84

Finding the Fourth Proportional to 8,601.28, 11,870 and 6,087.84

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Solution

The fourth proportional to 8,601.28, 11,870 and 6,087.84 is: 8,401.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.28 : 11,870 = 6,087.84 : x
  2. Step 2: Convert to fraction form
    8,601.28/11,870 = 6,087.84/x
  3. Step 3: Cross multiply
    8,601.28x = 11,870 × 6,087.84
  4. Step 4: Simplify right side
    8,601.28x = 72,262,660.80
  5. Step 5: Solve for x
    x = 72,262,660.80/8,601.28
  6. Step 6: Final answer
    x = 8,401.38

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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.