Home / 13,902.37-19,165.21-9,178.45

Finding the Fourth Proportional to 13,902.37, 19,165.21 and 9,178.45

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Solution

The fourth proportional to 13,902.37, 19,165.21 and 9,178.45 is: 12,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.37 : 19,165.21 = 9,178.45 : x
  2. Step 2: Convert to fraction form
    13,902.37/19,165.21 = 9,178.45/x
  3. Step 3: Cross multiply
    13,902.37x = 19,165.21 × 9,178.45
  4. Step 4: Simplify right side
    13,902.37x = 175,906,850.87
  5. Step 5: Solve for x
    x = 175,906,850.87/13,902.37
  6. Step 6: Final answer
    x = 12,653.01

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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.