Home / 13,923.36-19,232.64-10,380.42

Finding the Fourth Proportional to 13,923.36, 19,232.64 and 10,380.42

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Solution

The fourth proportional to 13,923.36, 19,232.64 and 10,380.42 is: 14,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.36 : 19,232.64 = 10,380.42 : x
  2. Step 2: Convert to fraction form
    13,923.36/19,232.64 = 10,380.42/x
  3. Step 3: Cross multiply
    13,923.36x = 19,232.64 × 10,380.42
  4. Step 4: Simplify right side
    13,923.36x = 199,642,880.91
  5. Step 5: Solve for x
    x = 199,642,880.91/13,923.36
  6. Step 6: Final answer
    x = 14,338.70

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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.