Home / 10,429.64-15,644.51-2,638.46

Finding the Fourth Proportional to 10,429.64, 15,644.51 and 2,638.46

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Solution

The fourth proportional to 10,429.64, 15,644.51 and 2,638.46 is: 3,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429.64 : 15,644.51 = 2,638.46 : x
  2. Step 2: Convert to fraction form
    10,429.64/15,644.51 = 2,638.46/x
  3. Step 3: Cross multiply
    10,429.64x = 15,644.51 × 2,638.46
  4. Step 4: Simplify right side
    10,429.64x = 41,277,322.44
  5. Step 5: Solve for x
    x = 41,277,322.44/10,429.64
  6. Step 6: Final answer
    x = 3,957.70

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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.