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Finding the Fourth Proportional to 7,810.72, 11,732.18 and 7,473.87

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Solution

The fourth proportional to 7,810.72, 11,732.18 and 7,473.87 is: 11,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.72 : 11,732.18 = 7,473.87 : x
  2. Step 2: Convert to fraction form
    7,810.72/11,732.18 = 7,473.87/x
  3. Step 3: Cross multiply
    7,810.72x = 11,732.18 × 7,473.87
  4. Step 4: Simplify right side
    7,810.72x = 87,684,750.77
  5. Step 5: Solve for x
    x = 87,684,750.77/7,810.72
  6. Step 6: Final answer
    x = 11,226.21

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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.