Home / 12,386.24-17,087.32-7,907.75

Finding the Fourth Proportional to 12,386.24, 17,087.32 and 7,907.75

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Solution

The fourth proportional to 12,386.24, 17,087.32 and 7,907.75 is: 10,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.24 : 17,087.32 = 7,907.75 : x
  2. Step 2: Convert to fraction form
    12,386.24/17,087.32 = 7,907.75/x
  3. Step 3: Cross multiply
    12,386.24x = 17,087.32 × 7,907.75
  4. Step 4: Simplify right side
    12,386.24x = 135,122,254.73
  5. Step 5: Solve for x
    x = 135,122,254.73/12,386.24
  6. Step 6: Final answer
    x = 10,909.06

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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.