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Finding the Fourth Proportional to 6,666.63, 10,010.22 and 5,640.12

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Solution

The fourth proportional to 6,666.63, 10,010.22 and 5,640.12 is: 8,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.63 : 10,010.22 = 5,640.12 : x
  2. Step 2: Convert to fraction form
    6,666.63/10,010.22 = 5,640.12/x
  3. Step 3: Cross multiply
    6,666.63x = 10,010.22 × 5,640.12
  4. Step 4: Simplify right side
    6,666.63x = 56,458,842.03
  5. Step 5: Solve for x
    x = 56,458,842.03/6,666.63
  6. Step 6: Final answer
    x = 8,468.87

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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.