Home / 14,639.68-20,200.80-8,266.72

Finding the Fourth Proportional to 14,639.68, 20,200.80 and 8,266.72

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Solution

The fourth proportional to 14,639.68, 20,200.80 and 8,266.72 is: 11,406.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.68 : 20,200.80 = 8,266.72 : x
  2. Step 2: Convert to fraction form
    14,639.68/20,200.80 = 8,266.72/x
  3. Step 3: Cross multiply
    14,639.68x = 20,200.80 × 8,266.72
  4. Step 4: Simplify right side
    14,639.68x = 166,994,357.38
  5. Step 5: Solve for x
    x = 166,994,357.38/14,639.68
  6. Step 6: Final answer
    x = 11,406.97

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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.