Home / 7,620.78-10,513.77-4,635.48

Finding the Fourth Proportional to 7,620.78, 10,513.77 and 4,635.48

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Solution

The fourth proportional to 7,620.78, 10,513.77 and 4,635.48 is: 6,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.78 : 10,513.77 = 4,635.48 : x
  2. Step 2: Convert to fraction form
    7,620.78/10,513.77 = 4,635.48/x
  3. Step 3: Cross multiply
    7,620.78x = 10,513.77 × 4,635.48
  4. Step 4: Simplify right side
    7,620.78x = 48,736,370.56
  5. Step 5: Solve for x
    x = 48,736,370.56/7,620.78
  6. Step 6: Final answer
    x = 6,395.19

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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.