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Finding the Fourth Proportional to 8,435.61, 11,637 and 5,454

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Solution

The fourth proportional to 8,435.61, 11,637 and 5,454 is: 7,523.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.61 : 11,637 = 5,454 : x
  2. Step 2: Convert to fraction form
    8,435.61/11,637 = 5,454/x
  3. Step 3: Cross multiply
    8,435.61x = 11,637 × 5,454
  4. Step 4: Simplify right side
    8,435.61x = 63,468,198
  5. Step 5: Solve for x
    x = 63,468,198/8,435.61
  6. Step 6: Final answer
    x = 7,523.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.