Home / 10,087.48-15,142.56-4,249

Finding the Fourth Proportional to 10,087.48, 15,142.56 and 4,249

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Solution

The fourth proportional to 10,087.48, 15,142.56 and 4,249 is: 6,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.48 : 15,142.56 = 4,249 : x
  2. Step 2: Convert to fraction form
    10,087.48/15,142.56 = 4,249/x
  3. Step 3: Cross multiply
    10,087.48x = 15,142.56 × 4,249
  4. Step 4: Simplify right side
    10,087.48x = 64,340,737.44
  5. Step 5: Solve for x
    x = 64,340,737.44/10,087.48
  6. Step 6: Final answer
    x = 6,378.28

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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.