Home / 15,056.96-20,777.74-8,342.19

Finding the Fourth Proportional to 15,056.96, 20,777.74 and 8,342.19

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Solution

The fourth proportional to 15,056.96, 20,777.74 and 8,342.19 is: 11,511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056.96 : 20,777.74 = 8,342.19 : x
  2. Step 2: Convert to fraction form
    15,056.96/20,777.74 = 8,342.19/x
  3. Step 3: Cross multiply
    15,056.96x = 20,777.74 × 8,342.19
  4. Step 4: Simplify right side
    15,056.96x = 173,331,761.20
  5. Step 5: Solve for x
    x = 173,331,761.20/15,056.96
  6. Step 6: Final answer
    x = 11,511.74

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Half scale
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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.