Home / 8,990.70-13,485.60-2,416.74

Finding the Fourth Proportional to 8,990.70, 13,485.60 and 2,416.74

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Solution

The fourth proportional to 8,990.70, 13,485.60 and 2,416.74 is: 3,624.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.70 : 13,485.60 = 2,416.74 : x
  2. Step 2: Convert to fraction form
    8,990.70/13,485.60 = 2,416.74/x
  3. Step 3: Cross multiply
    8,990.70x = 13,485.60 × 2,416.74
  4. Step 4: Simplify right side
    8,990.70x = 32,591,188.94
  5. Step 5: Solve for x
    x = 32,591,188.94/8,990.70
  6. Step 6: Final answer
    x = 3,624.99

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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.