Home / 18,387.39-27,580.47-10,071.33

Finding the Fourth Proportional to 18,387.39, 27,580.47 and 10,071.33

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Solution

The fourth proportional to 18,387.39, 27,580.47 and 10,071.33 is: 15,106.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.39 : 27,580.47 = 10,071.33 : x
  2. Step 2: Convert to fraction form
    18,387.39/27,580.47 = 10,071.33/x
  3. Step 3: Cross multiply
    18,387.39x = 27,580.47 × 10,071.33
  4. Step 4: Simplify right side
    18,387.39x = 277,772,014.93
  5. Step 5: Solve for x
    x = 277,772,014.93/18,387.39
  6. Step 6: Final answer
    x = 15,106.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.