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Finding the Fourth Proportional to 6,672.68, 9,988.96 and 6,513.51

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Solution

The fourth proportional to 6,672.68, 9,988.96 and 6,513.51 is: 9,750.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.68 : 9,988.96 = 6,513.51 : x
  2. Step 2: Convert to fraction form
    6,672.68/9,988.96 = 6,513.51/x
  3. Step 3: Cross multiply
    6,672.68x = 9,988.96 × 6,513.51
  4. Step 4: Simplify right side
    6,672.68x = 65,063,190.85
  5. Step 5: Solve for x
    x = 65,063,190.85/6,672.68
  6. Step 6: Final answer
    x = 9,750.69

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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.