Home / 15,134.07-20,883.98-8,419.44

Finding the Fourth Proportional to 15,134.07, 20,883.98 and 8,419.44

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Solution

The fourth proportional to 15,134.07, 20,883.98 and 8,419.44 is: 11,618.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.07 : 20,883.98 = 8,419.44 : x
  2. Step 2: Convert to fraction form
    15,134.07/20,883.98 = 8,419.44/x
  3. Step 3: Cross multiply
    15,134.07x = 20,883.98 × 8,419.44
  4. Step 4: Simplify right side
    15,134.07x = 175,831,468.58
  5. Step 5: Solve for x
    x = 175,831,468.58/15,134.07
  6. Step 6: Final answer
    x = 11,618.26

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1.5x scale

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.