Home / 10,429.41-15,644.13-2,638.22

Finding the Fourth Proportional to 10,429.41, 15,644.13 and 2,638.22

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Solution

The fourth proportional to 10,429.41, 15,644.13 and 2,638.22 is: 3,957.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429.41 : 15,644.13 = 2,638.22 : x
  2. Step 2: Convert to fraction form
    10,429.41/15,644.13 = 2,638.22/x
  3. Step 3: Cross multiply
    10,429.41x = 15,644.13 × 2,638.22
  4. Step 4: Simplify right side
    10,429.41x = 41,272,643.46
  5. Step 5: Solve for x
    x = 41,272,643.46/10,429.41
  6. Step 6: Final answer
    x = 3,957.33

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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.