Home / 10,078.12-15,117.16-2,682.58

Finding the Fourth Proportional to 10,078.12, 15,117.16 and 2,682.58

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Solution

The fourth proportional to 10,078.12, 15,117.16 and 2,682.58 is: 4,023.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.12 : 15,117.16 = 2,682.58 : x
  2. Step 2: Convert to fraction form
    10,078.12/15,117.16 = 2,682.58/x
  3. Step 3: Cross multiply
    10,078.12x = 15,117.16 × 2,682.58
  4. Step 4: Simplify right side
    10,078.12x = 40,552,991.07
  5. Step 5: Solve for x
    x = 40,552,991.07/10,078.12
  6. Step 6: Final answer
    x = 4,023.86

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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.