Home / 13,839.61-19,098.66-9,867.64

Finding the Fourth Proportional to 13,839.61, 19,098.66 and 9,867.64

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Solution

The fourth proportional to 13,839.61, 19,098.66 and 9,867.64 is: 13,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.61 : 19,098.66 = 9,867.64 : x
  2. Step 2: Convert to fraction form
    13,839.61/19,098.66 = 9,867.64/x
  3. Step 3: Cross multiply
    13,839.61x = 19,098.66 × 9,867.64
  4. Step 4: Simplify right side
    13,839.61x = 188,458,738.96
  5. Step 5: Solve for x
    x = 188,458,738.96/13,839.61
  6. Step 6: Final answer
    x = 13,617.35

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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.