Home / 8,628.15-12,948.66-6,412.11

Finding the Fourth Proportional to 8,628.15, 12,948.66 and 6,412.11

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Solution

The fourth proportional to 8,628.15, 12,948.66 and 6,412.11 is: 9,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.15 : 12,948.66 = 6,412.11 : x
  2. Step 2: Convert to fraction form
    8,628.15/12,948.66 = 6,412.11/x
  3. Step 3: Cross multiply
    8,628.15x = 12,948.66 × 6,412.11
  4. Step 4: Simplify right side
    8,628.15x = 83,028,232.27
  5. Step 5: Solve for x
    x = 83,028,232.27/8,628.15
  6. Step 6: Final answer
    x = 9,622.95

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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.