Home / 8,276.81-12,417.78-2,655.32

Finding the Fourth Proportional to 8,276.81, 12,417.78 and 2,655.32

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Solution

The fourth proportional to 8,276.81, 12,417.78 and 2,655.32 is: 3,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.81 : 12,417.78 = 2,655.32 : x
  2. Step 2: Convert to fraction form
    8,276.81/12,417.78 = 2,655.32/x
  3. Step 3: Cross multiply
    8,276.81x = 12,417.78 × 2,655.32
  4. Step 4: Simplify right side
    8,276.81x = 32,973,179.59
  5. Step 5: Solve for x
    x = 32,973,179.59/8,276.81
  6. Step 6: Final answer
    x = 3,983.80

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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.