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Finding the Fourth Proportional to 10,476, 15,714 and 3,180

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Solution

The fourth proportional to 10,476, 15,714 and 3,180 is: 4,770

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,476 : 15,714 = 3,180 : x
  2. Step 2: Convert to fraction form
    10,476/15,714 = 3,180/x
  3. Step 3: Cross multiply
    10,476x = 15,714 × 3,180
  4. Step 4: Simplify right side
    10,476x = 49,970,520
  5. Step 5: Solve for x
    x = 49,970,520/10,476
  6. Step 6: Final answer
    x = 4,770

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.