Home / 8,625.18-11,907.05-5,645.57

Finding the Fourth Proportional to 8,625.18, 11,907.05 and 5,645.57

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Solution

The fourth proportional to 8,625.18, 11,907.05 and 5,645.57 is: 7,793.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.18 : 11,907.05 = 5,645.57 : x
  2. Step 2: Convert to fraction form
    8,625.18/11,907.05 = 5,645.57/x
  3. Step 3: Cross multiply
    8,625.18x = 11,907.05 × 5,645.57
  4. Step 4: Simplify right side
    8,625.18x = 67,221,996.51
  5. Step 5: Solve for x
    x = 67,221,996.51/8,625.18
  6. Step 6: Final answer
    x = 7,793.69

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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.