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Finding the Fourth Proportional to 8,127, 12,191.58 and 3,511.08

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Solution

The fourth proportional to 8,127, 12,191.58 and 3,511.08 is: 5,267.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127 : 12,191.58 = 3,511.08 : x
  2. Step 2: Convert to fraction form
    8,127/12,191.58 = 3,511.08/x
  3. Step 3: Cross multiply
    8,127x = 12,191.58 × 3,511.08
  4. Step 4: Simplify right side
    8,127x = 42,805,612.71
  5. Step 5: Solve for x
    x = 42,805,612.71/8,127
  6. Step 6: Final answer
    x = 5,267.09

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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.