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Finding the Fourth Proportional to 7,203.66, 10,807.11 and 5,211.87

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Solution

The fourth proportional to 7,203.66, 10,807.11 and 5,211.87 is: 7,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.66 : 10,807.11 = 5,211.87 : x
  2. Step 2: Convert to fraction form
    7,203.66/10,807.11 = 5,211.87/x
  3. Step 3: Cross multiply
    7,203.66x = 10,807.11 × 5,211.87
  4. Step 4: Simplify right side
    7,203.66x = 56,325,252.40
  5. Step 5: Solve for x
    x = 56,325,252.40/7,203.66
  6. Step 6: Final answer
    x = 7,818.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.