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Finding the Fourth Proportional to 7,672.62, 11,508.12 and 2,477.28

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Solution

The fourth proportional to 7,672.62, 11,508.12 and 2,477.28 is: 3,715.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.62 : 11,508.12 = 2,477.28 : x
  2. Step 2: Convert to fraction form
    7,672.62/11,508.12 = 2,477.28/x
  3. Step 3: Cross multiply
    7,672.62x = 11,508.12 × 2,477.28
  4. Step 4: Simplify right side
    7,672.62x = 28,508,835.51
  5. Step 5: Solve for x
    x = 28,508,835.51/7,672.62
  6. Step 6: Final answer
    x = 3,715.66

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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.