Home / 18,118.61-25,003.36-10,160.81

Finding the Fourth Proportional to 18,118.61, 25,003.36 and 10,160.81

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Solution

The fourth proportional to 18,118.61, 25,003.36 and 10,160.81 is: 14,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.61 : 25,003.36 = 10,160.81 : x
  2. Step 2: Convert to fraction form
    18,118.61/25,003.36 = 10,160.81/x
  3. Step 3: Cross multiply
    18,118.61x = 25,003.36 × 10,160.81
  4. Step 4: Simplify right side
    18,118.61x = 254,054,390.32
  5. Step 5: Solve for x
    x = 254,054,390.32/18,118.61
  6. Step 6: Final answer
    x = 14,021.74

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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.