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Finding the Fourth Proportional to 8,646.89, 11,907.54 and 7,512.03

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Solution

The fourth proportional to 8,646.89, 11,907.54 and 7,512.03 is: 10,344.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.89 : 11,907.54 = 7,512.03 : x
  2. Step 2: Convert to fraction form
    8,646.89/11,907.54 = 7,512.03/x
  3. Step 3: Cross multiply
    8,646.89x = 11,907.54 × 7,512.03
  4. Step 4: Simplify right side
    8,646.89x = 89,449,797.71
  5. Step 5: Solve for x
    x = 89,449,797.71/8,646.89
  6. Step 6: Final answer
    x = 10,344.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.