Home / 10,415.68-15,625.94-3,020.28

Finding the Fourth Proportional to 10,415.68, 15,625.94 and 3,020.28

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Solution

The fourth proportional to 10,415.68, 15,625.94 and 3,020.28 is: 4,531.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.68 : 15,625.94 = 3,020.28 : x
  2. Step 2: Convert to fraction form
    10,415.68/15,625.94 = 3,020.28/x
  3. Step 3: Cross multiply
    10,415.68x = 15,625.94 × 3,020.28
  4. Step 4: Simplify right side
    10,415.68x = 47,194,714.06
  5. Step 5: Solve for x
    x = 47,194,714.06/10,415.68
  6. Step 6: Final answer
    x = 4,531.12

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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.