Home / 10,627.84-15,941.62-4,780.32

Finding the Fourth Proportional to 10,627.84, 15,941.62 and 4,780.32

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Solution

The fourth proportional to 10,627.84, 15,941.62 and 4,780.32 is: 7,170.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,627.84 : 15,941.62 = 4,780.32 : x
  2. Step 2: Convert to fraction form
    10,627.84/15,941.62 = 4,780.32/x
  3. Step 3: Cross multiply
    10,627.84x = 15,941.62 × 4,780.32
  4. Step 4: Simplify right side
    10,627.84x = 76,206,044.92
  5. Step 5: Solve for x
    x = 76,206,044.92/10,627.84
  6. Step 6: Final answer
    x = 7,170.42

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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.