Home / 18,881.13-26,055.78-10,383.12

Finding the Fourth Proportional to 18,881.13, 26,055.78 and 10,383.12

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Solution

The fourth proportional to 18,881.13, 26,055.78 and 10,383.12 is: 14,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.13 : 26,055.78 = 10,383.12 : x
  2. Step 2: Convert to fraction form
    18,881.13/26,055.78 = 10,383.12/x
  3. Step 3: Cross multiply
    18,881.13x = 26,055.78 × 10,383.12
  4. Step 4: Simplify right side
    18,881.13x = 270,540,251.50
  5. Step 5: Solve for x
    x = 270,540,251.50/18,881.13
  6. Step 6: Final answer
    x = 14,328.60

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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.