Home / 14,904.80-20,568.70-8,190.57

Finding the Fourth Proportional to 14,904.80, 20,568.70 and 8,190.57

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Solution

The fourth proportional to 14,904.80, 20,568.70 and 8,190.57 is: 11,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,904.80 : 20,568.70 = 8,190.57 : x
  2. Step 2: Convert to fraction form
    14,904.80/20,568.70 = 8,190.57/x
  3. Step 3: Cross multiply
    14,904.80x = 20,568.70 × 8,190.57
  4. Step 4: Simplify right side
    14,904.80x = 168,469,377.16
  5. Step 5: Solve for x
    x = 168,469,377.16/14,904.80
  6. Step 6: Final answer
    x = 11,303.03

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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.