Home / 11,355.12-17,029.44-4,428

Finding the Fourth Proportional to 11,355.12, 17,029.44 and 4,428

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Solution

The fourth proportional to 11,355.12, 17,029.44 and 4,428 is: 6,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.12 : 17,029.44 = 4,428 : x
  2. Step 2: Convert to fraction form
    11,355.12/17,029.44 = 4,428/x
  3. Step 3: Cross multiply
    11,355.12x = 17,029.44 × 4,428
  4. Step 4: Simplify right side
    11,355.12x = 75,406,360.32
  5. Step 5: Solve for x
    x = 75,406,360.32/11,355.12
  6. Step 6: Final answer
    x = 6,640.74

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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.