Home / 8,417.14-12,630.32-3,155.79

Finding the Fourth Proportional to 8,417.14, 12,630.32 and 3,155.79

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Solution

The fourth proportional to 8,417.14, 12,630.32 and 3,155.79 is: 4,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.14 : 12,630.32 = 3,155.79 : x
  2. Step 2: Convert to fraction form
    8,417.14/12,630.32 = 3,155.79/x
  3. Step 3: Cross multiply
    8,417.14x = 12,630.32 × 3,155.79
  4. Step 4: Simplify right side
    8,417.14x = 39,858,637.55
  5. Step 5: Solve for x
    x = 39,858,637.55/8,417.14
  6. Step 6: Final answer
    x = 4,735.41

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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.