Home / 10,087.80-15,131.68-4,894.44

Finding the Fourth Proportional to 10,087.80, 15,131.68 and 4,894.44

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Solution

The fourth proportional to 10,087.80, 15,131.68 and 4,894.44 is: 7,341.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.80 : 15,131.68 = 4,894.44 : x
  2. Step 2: Convert to fraction form
    10,087.80/15,131.68 = 4,894.44/x
  3. Step 3: Cross multiply
    10,087.80x = 15,131.68 × 4,894.44
  4. Step 4: Simplify right side
    10,087.80x = 74,061,099.86
  5. Step 5: Solve for x
    x = 74,061,099.86/10,087.80
  6. Step 6: Final answer
    x = 7,341.65

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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.