Home / 19,685.67-27,165.20-11,186.66

Finding the Fourth Proportional to 19,685.67, 27,165.20 and 11,186.66

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Solution

The fourth proportional to 19,685.67, 27,165.20 and 11,186.66 is: 15,437.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,685.67 : 27,165.20 = 11,186.66 : x
  2. Step 2: Convert to fraction form
    19,685.67/27,165.20 = 11,186.66/x
  3. Step 3: Cross multiply
    19,685.67x = 27,165.20 × 11,186.66
  4. Step 4: Simplify right side
    19,685.67x = 303,887,664.47
  5. Step 5: Solve for x
    x = 303,887,664.47/19,685.67
  6. Step 6: Final answer
    x = 15,437.00

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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.