Home / 8,688.24-13,026.80-3,687.92

Finding the Fourth Proportional to 8,688.24, 13,026.80 and 3,687.92

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Solution

The fourth proportional to 8,688.24, 13,026.80 and 3,687.92 is: 5,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.24 : 13,026.80 = 3,687.92 : x
  2. Step 2: Convert to fraction form
    8,688.24/13,026.80 = 3,687.92/x
  3. Step 3: Cross multiply
    8,688.24x = 13,026.80 × 3,687.92
  4. Step 4: Simplify right side
    8,688.24x = 48,041,796.26
  5. Step 5: Solve for x
    x = 48,041,796.26/8,688.24
  6. Step 6: Final answer
    x = 5,529.52

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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.