Home / 13,889.29-19,167.67-7,601.66

Finding the Fourth Proportional to 13,889.29, 19,167.67 and 7,601.66

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Solution

The fourth proportional to 13,889.29, 19,167.67 and 7,601.66 is: 10,490.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.29 : 19,167.67 = 7,601.66 : x
  2. Step 2: Convert to fraction form
    13,889.29/19,167.67 = 7,601.66/x
  3. Step 3: Cross multiply
    13,889.29x = 19,167.67 × 7,601.66
  4. Step 4: Simplify right side
    13,889.29x = 145,706,110.33
  5. Step 5: Solve for x
    x = 145,706,110.33/13,889.29
  6. Step 6: Final answer
    x = 10,490.54

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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.