Home / 8,158.06-12,228.54-3,480.28

Finding the Fourth Proportional to 8,158.06, 12,228.54 and 3,480.28

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Solution

The fourth proportional to 8,158.06, 12,228.54 and 3,480.28 is: 5,216.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.06 : 12,228.54 = 3,480.28 : x
  2. Step 2: Convert to fraction form
    8,158.06/12,228.54 = 3,480.28/x
  3. Step 3: Cross multiply
    8,158.06x = 12,228.54 × 3,480.28
  4. Step 4: Simplify right side
    8,158.06x = 42,558,743.19
  5. Step 5: Solve for x
    x = 42,558,743.19/8,158.06
  6. Step 6: Final answer
    x = 5,216.77

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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.