Home / 13,922.29-19,213.91-7,955.83

Finding the Fourth Proportional to 13,922.29, 19,213.91 and 7,955.83

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Solution

The fourth proportional to 13,922.29, 19,213.91 and 7,955.83 is: 10,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.29 : 19,213.91 = 7,955.83 : x
  2. Step 2: Convert to fraction form
    13,922.29/19,213.91 = 7,955.83/x
  3. Step 3: Cross multiply
    13,922.29x = 19,213.91 × 7,955.83
  4. Step 4: Simplify right side
    13,922.29x = 152,862,601.60
  5. Step 5: Solve for x
    x = 152,862,601.60/13,922.29
  6. Step 6: Final answer
    x = 10,979.70

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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.