Home / 17,926.11-26,889.17-4,778.53

Finding the Fourth Proportional to 17,926.11, 26,889.17 and 4,778.53

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Solution

The fourth proportional to 17,926.11, 26,889.17 and 4,778.53 is: 7,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,926.11 : 26,889.17 = 4,778.53 : x
  2. Step 2: Convert to fraction form
    17,926.11/26,889.17 = 4,778.53/x
  3. Step 3: Cross multiply
    17,926.11x = 26,889.17 × 4,778.53
  4. Step 4: Simplify right side
    17,926.11x = 128,490,614.40
  5. Step 5: Solve for x
    x = 128,490,614.40/17,926.11
  6. Step 6: Final answer
    x = 7,167.79

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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.