Home / 13,890.06-19,167.55-7,601.22

Finding the Fourth Proportional to 13,890.06, 19,167.55 and 7,601.22

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Solution

The fourth proportional to 13,890.06, 19,167.55 and 7,601.22 is: 10,489.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.06 : 19,167.55 = 7,601.22 : x
  2. Step 2: Convert to fraction form
    13,890.06/19,167.55 = 7,601.22/x
  3. Step 3: Cross multiply
    13,890.06x = 19,167.55 × 7,601.22
  4. Step 4: Simplify right side
    13,890.06x = 145,696,745.41
  5. Step 5: Solve for x
    x = 145,696,745.41/13,890.06
  6. Step 6: Final answer
    x = 10,489.28

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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.