Home / 8,426.72-12,640.56-2,583.36

Finding the Fourth Proportional to 8,426.72, 12,640.56 and 2,583.36

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Solution

The fourth proportional to 8,426.72, 12,640.56 and 2,583.36 is: 3,875.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.72 : 12,640.56 = 2,583.36 : x
  2. Step 2: Convert to fraction form
    8,426.72/12,640.56 = 2,583.36/x
  3. Step 3: Cross multiply
    8,426.72x = 12,640.56 × 2,583.36
  4. Step 4: Simplify right side
    8,426.72x = 32,655,117.08
  5. Step 5: Solve for x
    x = 32,655,117.08/8,426.72
  6. Step 6: Final answer
    x = 3,875.19

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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.