Home / 18,138.09-25,030.76-10,180.47

Finding the Fourth Proportional to 18,138.09, 25,030.76 and 10,180.47

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Solution

The fourth proportional to 18,138.09, 25,030.76 and 10,180.47 is: 14,049.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.09 : 25,030.76 = 10,180.47 : x
  2. Step 2: Convert to fraction form
    18,138.09/25,030.76 = 10,180.47/x
  3. Step 3: Cross multiply
    18,138.09x = 25,030.76 × 10,180.47
  4. Step 4: Simplify right side
    18,138.09x = 254,824,850.35
  5. Step 5: Solve for x
    x = 254,824,850.35/18,138.09
  6. Step 6: Final answer
    x = 14,049.16

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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.