Home / 11,525.21-15,906.30-6,490.41

Finding the Fourth Proportional to 11,525.21, 15,906.30 and 6,490.41

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Solution

The fourth proportional to 11,525.21, 15,906.30 and 6,490.41 is: 8,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,525.21 : 15,906.30 = 6,490.41 : x
  2. Step 2: Convert to fraction form
    11,525.21/15,906.30 = 6,490.41/x
  3. Step 3: Cross multiply
    11,525.21x = 15,906.30 × 6,490.41
  4. Step 4: Simplify right side
    11,525.21x = 103,238,376.13
  5. Step 5: Solve for x
    x = 103,238,376.13/11,525.21
  6. Step 6: Final answer
    x = 8,957.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.