Home / 7,615.11-10,508.77-4,212.12

Finding the Fourth Proportional to 7,615.11, 10,508.77 and 4,212.12

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Solution

The fourth proportional to 7,615.11, 10,508.77 and 4,212.12 is: 5,812.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.11 : 10,508.77 = 4,212.12 : x
  2. Step 2: Convert to fraction form
    7,615.11/10,508.77 = 4,212.12/x
  3. Step 3: Cross multiply
    7,615.11x = 10,508.77 × 4,212.12
  4. Step 4: Simplify right side
    7,615.11x = 44,264,147.75
  5. Step 5: Solve for x
    x = 44,264,147.75/7,615.11
  6. Step 6: Final answer
    x = 5,812.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.