Home / 11,188.31-15,440.32-6,710.43

Finding the Fourth Proportional to 11,188.31, 15,440.32 and 6,710.43

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Solution

The fourth proportional to 11,188.31, 15,440.32 and 6,710.43 is: 9,260.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.31 : 15,440.32 = 6,710.43 : x
  2. Step 2: Convert to fraction form
    11,188.31/15,440.32 = 6,710.43/x
  3. Step 3: Cross multiply
    11,188.31x = 15,440.32 × 6,710.43
  4. Step 4: Simplify right side
    11,188.31x = 103,611,169.76
  5. Step 5: Solve for x
    x = 103,611,169.76/11,188.31
  6. Step 6: Final answer
    x = 9,260.66

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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.