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Finding the Fourth Proportional to 10,005.56, 13,807.62 and 5,529.62

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Solution

The fourth proportional to 10,005.56, 13,807.62 and 5,529.62 is: 7,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.56 : 13,807.62 = 5,529.62 : x
  2. Step 2: Convert to fraction form
    10,005.56/13,807.62 = 5,529.62/x
  3. Step 3: Cross multiply
    10,005.56x = 13,807.62 × 5,529.62
  4. Step 4: Simplify right side
    10,005.56x = 76,350,891.70
  5. Step 5: Solve for x
    x = 76,350,891.70/10,005.56
  6. Step 6: Final answer
    x = 7,630.85

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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.