Home / 14,228.60-19,634.86-7,940.92

Finding the Fourth Proportional to 14,228.60, 19,634.86 and 7,940.92

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Solution

The fourth proportional to 14,228.60, 19,634.86 and 7,940.92 is: 10,958.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.60 : 19,634.86 = 7,940.92 : x
  2. Step 2: Convert to fraction form
    14,228.60/19,634.86 = 7,940.92/x
  3. Step 3: Cross multiply
    14,228.60x = 19,634.86 × 7,940.92
  4. Step 4: Simplify right side
    14,228.60x = 155,918,852.47
  5. Step 5: Solve for x
    x = 155,918,852.47/14,228.60
  6. Step 6: Final answer
    x = 10,958.13

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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.