Home / 13,889.13-19,167.40-7,601.91

Finding the Fourth Proportional to 13,889.13, 19,167.40 and 7,601.91

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Solution

The fourth proportional to 13,889.13, 19,167.40 and 7,601.91 is: 10,490.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.13 : 19,167.40 = 7,601.91 : x
  2. Step 2: Convert to fraction form
    13,889.13/19,167.40 = 7,601.91/x
  3. Step 3: Cross multiply
    13,889.13x = 19,167.40 × 7,601.91
  4. Step 4: Simplify right side
    13,889.13x = 145,708,849.73
  5. Step 5: Solve for x
    x = 145,708,849.73/13,889.13
  6. Step 6: Final answer
    x = 10,490.86

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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.