Home / 12,934.62-17,858.34-9,945.18

Finding the Fourth Proportional to 12,934.62, 17,858.34 and 9,945.18

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Solution

The fourth proportional to 12,934.62, 17,858.34 and 9,945.18 is: 13,730.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.62 : 17,858.34 = 9,945.18 : x
  2. Step 2: Convert to fraction form
    12,934.62/17,858.34 = 9,945.18/x
  3. Step 3: Cross multiply
    12,934.62x = 17,858.34 × 9,945.18
  4. Step 4: Simplify right side
    12,934.62x = 177,604,405.80
  5. Step 5: Solve for x
    x = 177,604,405.80/12,934.62
  6. Step 6: Final answer
    x = 13,730.93

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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.