Home / 10,411.64-15,617.48-2,620.40

Finding the Fourth Proportional to 10,411.64, 15,617.48 and 2,620.40

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Solution

The fourth proportional to 10,411.64, 15,617.48 and 2,620.40 is: 3,930.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411.64 : 15,617.48 = 2,620.40 : x
  2. Step 2: Convert to fraction form
    10,411.64/15,617.48 = 2,620.40/x
  3. Step 3: Cross multiply
    10,411.64x = 15,617.48 × 2,620.40
  4. Step 4: Simplify right side
    10,411.64x = 40,924,044.59
  5. Step 5: Solve for x
    x = 40,924,044.59/10,411.64
  6. Step 6: Final answer
    x = 3,930.61

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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.