Home / 13,926.69-19,221.57-7,957.80

Finding the Fourth Proportional to 13,926.69, 19,221.57 and 7,957.80

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Solution

The fourth proportional to 13,926.69, 19,221.57 and 7,957.80 is: 10,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.69 : 19,221.57 = 7,957.80 : x
  2. Step 2: Convert to fraction form
    13,926.69/19,221.57 = 7,957.80/x
  3. Step 3: Cross multiply
    13,926.69x = 19,221.57 × 7,957.80
  4. Step 4: Simplify right side
    13,926.69x = 152,961,409.75
  5. Step 5: Solve for x
    x = 152,961,409.75/13,926.69
  6. Step 6: Final answer
    x = 10,983.33

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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.