Home / 10,639.68-15,962.40-3,714.72

Finding the Fourth Proportional to 10,639.68, 15,962.40 and 3,714.72

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Solution

The fourth proportional to 10,639.68, 15,962.40 and 3,714.72 is: 5,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.68 : 15,962.40 = 3,714.72 : x
  2. Step 2: Convert to fraction form
    10,639.68/15,962.40 = 3,714.72/x
  3. Step 3: Cross multiply
    10,639.68x = 15,962.40 × 3,714.72
  4. Step 4: Simplify right side
    10,639.68x = 59,295,846.53
  5. Step 5: Solve for x
    x = 59,295,846.53/10,639.68
  6. Step 6: Final answer
    x = 5,573.09

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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.