Home / 18,119.66-25,005.39-10,948.58

Finding the Fourth Proportional to 18,119.66, 25,005.39 and 10,948.58

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Solution

The fourth proportional to 18,119.66, 25,005.39 and 10,948.58 is: 15,109.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.66 : 25,005.39 = 10,948.58 : x
  2. Step 2: Convert to fraction form
    18,119.66/25,005.39 = 10,948.58/x
  3. Step 3: Cross multiply
    18,119.66x = 25,005.39 × 10,948.58
  4. Step 4: Simplify right side
    18,119.66x = 273,773,458.10
  5. Step 5: Solve for x
    x = 273,773,458.10/18,119.66
  6. Step 6: Final answer
    x = 15,109.19

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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.