Home / 10,909.09-15,056.49-6,432.58

Finding the Fourth Proportional to 10,909.09, 15,056.49 and 6,432.58

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Solution

The fourth proportional to 10,909.09, 15,056.49 and 6,432.58 is: 8,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.09 : 15,056.49 = 6,432.58 : x
  2. Step 2: Convert to fraction form
    10,909.09/15,056.49 = 6,432.58/x
  3. Step 3: Cross multiply
    10,909.09x = 15,056.49 × 6,432.58
  4. Step 4: Simplify right side
    10,909.09x = 96,852,076.44
  5. Step 5: Solve for x
    x = 96,852,076.44/10,909.09
  6. Step 6: Final answer
    x = 8,878.11

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