Home / 19,685.32-27,164.81-11,187.23

Finding the Fourth Proportional to 19,685.32, 27,164.81 and 11,187.23

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Solution

The fourth proportional to 19,685.32, 27,164.81 and 11,187.23 is: 15,437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,685.32 : 27,164.81 = 11,187.23 : x
  2. Step 2: Convert to fraction form
    19,685.32/27,164.81 = 11,187.23/x
  3. Step 3: Cross multiply
    19,685.32x = 27,164.81 × 11,187.23
  4. Step 4: Simplify right side
    19,685.32x = 303,898,869.52
  5. Step 5: Solve for x
    x = 303,898,869.52/19,685.32
  6. Step 6: Final answer
    x = 15,437.84

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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.