Home / 8,511.12-12,768.54-2,587.56

Finding the Fourth Proportional to 8,511.12, 12,768.54 and 2,587.56

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Solution

The fourth proportional to 8,511.12, 12,768.54 and 2,587.56 is: 3,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.12 : 12,768.54 = 2,587.56 : x
  2. Step 2: Convert to fraction form
    8,511.12/12,768.54 = 2,587.56/x
  3. Step 3: Cross multiply
    8,511.12x = 12,768.54 × 2,587.56
  4. Step 4: Simplify right side
    8,511.12x = 33,039,363.36
  5. Step 5: Solve for x
    x = 33,039,363.36/8,511.12
  6. Step 6: Final answer
    x = 3,881.91

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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.