Home / 13,966.68-19,272.78-7,678.92

Finding the Fourth Proportional to 13,966.68, 19,272.78 and 7,678.92

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Solution

The fourth proportional to 13,966.68, 19,272.78 and 7,678.92 is: 10,596.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.68 : 19,272.78 = 7,678.92 : x
  2. Step 2: Convert to fraction form
    13,966.68/19,272.78 = 7,678.92/x
  3. Step 3: Cross multiply
    13,966.68x = 19,272.78 × 7,678.92
  4. Step 4: Simplify right side
    13,966.68x = 147,994,135.80
  5. Step 5: Solve for x
    x = 147,994,135.80/13,966.68
  6. Step 6: Final answer
    x = 10,596.23

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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.