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Finding the Fourth Proportional to 11,133.69, 15,361.95 and 6,656.68

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Solution

The fourth proportional to 11,133.69, 15,361.95 and 6,656.68 is: 9,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.69 : 15,361.95 = 6,656.68 : x
  2. Step 2: Convert to fraction form
    11,133.69/15,361.95 = 6,656.68/x
  3. Step 3: Cross multiply
    11,133.69x = 15,361.95 × 6,656.68
  4. Step 4: Simplify right side
    11,133.69x = 102,259,585.33
  5. Step 5: Solve for x
    x = 102,259,585.33/11,133.69
  6. Step 6: Final answer
    x = 9,184.70

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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.