Home / 10,348.93-15,529.80-5,422.10

Finding the Fourth Proportional to 10,348.93, 15,529.80 and 5,422.10

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Solution

The fourth proportional to 10,348.93, 15,529.80 and 5,422.10 is: 8,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.93 : 15,529.80 = 5,422.10 : x
  2. Step 2: Convert to fraction form
    10,348.93/15,529.80 = 5,422.10/x
  3. Step 3: Cross multiply
    10,348.93x = 15,529.80 × 5,422.10
  4. Step 4: Simplify right side
    10,348.93x = 84,204,128.58
  5. Step 5: Solve for x
    x = 84,204,128.58/10,348.93
  6. Step 6: Final answer
    x = 8,136.51

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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.