Home / 8,187.14-12,281.93-2,921.74

Finding the Fourth Proportional to 8,187.14, 12,281.93 and 2,921.74

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Solution

The fourth proportional to 8,187.14, 12,281.93 and 2,921.74 is: 4,383.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.14 : 12,281.93 = 2,921.74 : x
  2. Step 2: Convert to fraction form
    8,187.14/12,281.93 = 2,921.74/x
  3. Step 3: Cross multiply
    8,187.14x = 12,281.93 × 2,921.74
  4. Step 4: Simplify right side
    8,187.14x = 35,884,606.16
  5. Step 5: Solve for x
    x = 35,884,606.16/8,187.14
  6. Step 6: Final answer
    x = 4,383.05

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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.