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Finding the Fourth Proportional to 7,007.88, 10,511.82 and 1,813.77

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Solution

The fourth proportional to 7,007.88, 10,511.82 and 1,813.77 is: 2,720.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.88 : 10,511.82 = 1,813.77 : x
  2. Step 2: Convert to fraction form
    7,007.88/10,511.82 = 1,813.77/x
  3. Step 3: Cross multiply
    7,007.88x = 10,511.82 × 1,813.77
  4. Step 4: Simplify right side
    7,007.88x = 19,066,023.76
  5. Step 5: Solve for x
    x = 19,066,023.76/7,007.88
  6. Step 6: Final answer
    x = 2,720.66

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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.