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Finding the Fourth Proportional to 15,077.62, 20,785.59 and 10,827.32

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Solution

The fourth proportional to 15,077.62, 20,785.59 and 10,827.32 is: 14,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.62 : 20,785.59 = 10,827.32 : x
  2. Step 2: Convert to fraction form
    15,077.62/20,785.59 = 10,827.32/x
  3. Step 3: Cross multiply
    15,077.62x = 20,785.59 × 10,827.32
  4. Step 4: Simplify right side
    15,077.62x = 225,052,234.32
  5. Step 5: Solve for x
    x = 225,052,234.32/15,077.62
  6. Step 6: Final answer
    x = 14,926.24

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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.