Home / 19,115.64-28,656.18-6,800.76

Finding the Fourth Proportional to 19,115.64, 28,656.18 and 6,800.76

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Solution

The fourth proportional to 19,115.64, 28,656.18 and 6,800.76 is: 10,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.64 : 28,656.18 = 6,800.76 : x
  2. Step 2: Convert to fraction form
    19,115.64/28,656.18 = 6,800.76/x
  3. Step 3: Cross multiply
    19,115.64x = 28,656.18 × 6,800.76
  4. Step 4: Simplify right side
    19,115.64x = 194,883,802.70
  5. Step 5: Solve for x
    x = 194,883,802.70/19,115.64
  6. Step 6: Final answer
    x = 10,194.99

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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.