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Finding the Fourth Proportional to 7,007.66, 10,511.76 and 1,813.55

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Solution

The fourth proportional to 7,007.66, 10,511.76 and 1,813.55 is: 2,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.66 : 10,511.76 = 1,813.55 : x
  2. Step 2: Convert to fraction form
    7,007.66/10,511.76 = 1,813.55/x
  3. Step 3: Cross multiply
    7,007.66x = 10,511.76 × 1,813.55
  4. Step 4: Simplify right side
    7,007.66x = 19,063,602.35
  5. Step 5: Solve for x
    x = 19,063,602.35/7,007.66
  6. Step 6: Final answer
    x = 2,720.39

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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.