Home / 18,186.15-25,099.89-11,475.45

Finding the Fourth Proportional to 18,186.15, 25,099.89 and 11,475.45

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Solution

The fourth proportional to 18,186.15, 25,099.89 and 11,475.45 is: 15,838.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.15 : 25,099.89 = 11,475.45 : x
  2. Step 2: Convert to fraction form
    18,186.15/25,099.89 = 11,475.45/x
  3. Step 3: Cross multiply
    18,186.15x = 25,099.89 × 11,475.45
  4. Step 4: Simplify right side
    18,186.15x = 288,032,532.70
  5. Step 5: Solve for x
    x = 288,032,532.70/18,186.15
  6. Step 6: Final answer
    x = 15,838.02

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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.