Home / 11,365.02-15,685.61-6,648.39

Finding the Fourth Proportional to 11,365.02, 15,685.61 and 6,648.39

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Solution

The fourth proportional to 11,365.02, 15,685.61 and 6,648.39 is: 9,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,365.02 : 15,685.61 = 6,648.39 : x
  2. Step 2: Convert to fraction form
    11,365.02/15,685.61 = 6,648.39/x
  3. Step 3: Cross multiply
    11,365.02x = 15,685.61 × 6,648.39
  4. Step 4: Simplify right side
    11,365.02x = 104,284,019.43
  5. Step 5: Solve for x
    x = 104,284,019.43/11,365.02
  6. Step 6: Final answer
    x = 9,175.88

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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.