Home / 12,377.99-17,080.10-7,904.36

Finding the Fourth Proportional to 12,377.99, 17,080.10 and 7,904.36

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Solution

The fourth proportional to 12,377.99, 17,080.10 and 7,904.36 is: 10,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.99 : 17,080.10 = 7,904.36 : x
  2. Step 2: Convert to fraction form
    12,377.99/17,080.10 = 7,904.36/x
  3. Step 3: Cross multiply
    12,377.99x = 17,080.10 × 7,904.36
  4. Step 4: Simplify right side
    12,377.99x = 135,007,292.06
  5. Step 5: Solve for x
    x = 135,007,292.06/12,377.99
  6. Step 6: Final answer
    x = 10,907.04

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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.