Home / 14,660.40-21,990.60-6,349.80

Finding the Fourth Proportional to 14,660.40, 21,990.60 and 6,349.80

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Solution

The fourth proportional to 14,660.40, 21,990.60 and 6,349.80 is: 9,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,660.40 : 21,990.60 = 6,349.80 : x
  2. Step 2: Convert to fraction form
    14,660.40/21,990.60 = 6,349.80/x
  3. Step 3: Cross multiply
    14,660.40x = 21,990.60 × 6,349.80
  4. Step 4: Simplify right side
    14,660.40x = 139,635,911.88
  5. Step 5: Solve for x
    x = 139,635,911.88/14,660.40
  6. Step 6: Final answer
    x = 9,524.70

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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.