Home / 13,911.39-19,197.43-9,939.25

Finding the Fourth Proportional to 13,911.39, 19,197.43 and 9,939.25

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Solution

The fourth proportional to 13,911.39, 19,197.43 and 9,939.25 is: 13,715.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.39 : 19,197.43 = 9,939.25 : x
  2. Step 2: Convert to fraction form
    13,911.39/19,197.43 = 9,939.25/x
  3. Step 3: Cross multiply
    13,911.39x = 19,197.43 × 9,939.25
  4. Step 4: Simplify right side
    13,911.39x = 190,807,983.29
  5. Step 5: Solve for x
    x = 190,807,983.29/13,911.39
  6. Step 6: Final answer
    x = 13,715.95

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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.