Home / 18,188.15-25,099.98-10,122.47

Finding the Fourth Proportional to 18,188.15, 25,099.98 and 10,122.47

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Solution

The fourth proportional to 18,188.15, 25,099.98 and 10,122.47 is: 13,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.15 : 25,099.98 = 10,122.47 : x
  2. Step 2: Convert to fraction form
    18,188.15/25,099.98 = 10,122.47/x
  3. Step 3: Cross multiply
    18,188.15x = 25,099.98 × 10,122.47
  4. Step 4: Simplify right side
    18,188.15x = 254,073,725.22
  5. Step 5: Solve for x
    x = 254,073,725.22/18,188.15
  6. Step 6: Final answer
    x = 13,969.19

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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.