Home / 6,113.79-8,428.19-4,518.09

Finding the Fourth Proportional to 6,113.79, 8,428.19 and 4,518.09

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Solution

The fourth proportional to 6,113.79, 8,428.19 and 4,518.09 is: 6,228.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113.79 : 8,428.19 = 4,518.09 : x
  2. Step 2: Convert to fraction form
    6,113.79/8,428.19 = 4,518.09/x
  3. Step 3: Cross multiply
    6,113.79x = 8,428.19 × 4,518.09
  4. Step 4: Simplify right side
    6,113.79x = 38,079,298.37
  5. Step 5: Solve for x
    x = 38,079,298.37/6,113.79
  6. Step 6: Final answer
    x = 6,228.43

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Half scale
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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.