Home / 19,121.64-28,665.18-6,806.76

Finding the Fourth Proportional to 19,121.64, 28,665.18 and 6,806.76

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Solution

The fourth proportional to 19,121.64, 28,665.18 and 6,806.76 is: 10,203.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.64 : 28,665.18 = 6,806.76 : x
  2. Step 2: Convert to fraction form
    19,121.64/28,665.18 = 6,806.76/x
  3. Step 3: Cross multiply
    19,121.64x = 28,665.18 × 6,806.76
  4. Step 4: Simplify right side
    19,121.64x = 195,117,000.62
  5. Step 5: Solve for x
    x = 195,117,000.62/19,121.64
  6. Step 6: Final answer
    x = 10,203.99

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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.