Home / 13,497.43-18,618.65-8,116.12

Finding the Fourth Proportional to 13,497.43, 18,618.65 and 8,116.12

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Solution

The fourth proportional to 13,497.43, 18,618.65 and 8,116.12 is: 11,195.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,497.43 : 18,618.65 = 8,116.12 : x
  2. Step 2: Convert to fraction form
    13,497.43/18,618.65 = 8,116.12/x
  3. Step 3: Cross multiply
    13,497.43x = 18,618.65 × 8,116.12
  4. Step 4: Simplify right side
    13,497.43x = 151,111,197.64
  5. Step 5: Solve for x
    x = 151,111,197.64/13,497.43
  6. Step 6: Final answer
    x = 11,195.55

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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.