Home / 18,435.78-27,649.88-5,285.24

Finding the Fourth Proportional to 18,435.78, 27,649.88 and 5,285.24

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Solution

The fourth proportional to 18,435.78, 27,649.88 and 5,285.24 is: 7,926.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.78 : 27,649.88 = 5,285.24 : x
  2. Step 2: Convert to fraction form
    18,435.78/27,649.88 = 5,285.24/x
  3. Step 3: Cross multiply
    18,435.78x = 27,649.88 × 5,285.24
  4. Step 4: Simplify right side
    18,435.78x = 146,136,087.10
  5. Step 5: Solve for x
    x = 146,136,087.10/18,435.78
  6. Step 6: Final answer
    x = 7,926.76

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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.