Home / 14,942.14-20,615.50-8,480.70

Finding the Fourth Proportional to 14,942.14, 20,615.50 and 8,480.70

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Solution

The fourth proportional to 14,942.14, 20,615.50 and 8,480.70 is: 11,700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.14 : 20,615.50 = 8,480.70 : x
  2. Step 2: Convert to fraction form
    14,942.14/20,615.50 = 8,480.70/x
  3. Step 3: Cross multiply
    14,942.14x = 20,615.50 × 8,480.70
  4. Step 4: Simplify right side
    14,942.14x = 174,833,870.85
  5. Step 5: Solve for x
    x = 174,833,870.85/14,942.14
  6. Step 6: Final answer
    x = 11,700.72

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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.