Home / 7,867.40-10,860.39-5,625.36

Finding the Fourth Proportional to 7,867.40, 10,860.39 and 5,625.36

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Solution

The fourth proportional to 7,867.40, 10,860.39 and 5,625.36 is: 7,765.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.40 : 10,860.39 = 5,625.36 : x
  2. Step 2: Convert to fraction form
    7,867.40/10,860.39 = 5,625.36/x
  3. Step 3: Cross multiply
    7,867.40x = 10,860.39 × 5,625.36
  4. Step 4: Simplify right side
    7,867.40x = 61,093,603.49
  5. Step 5: Solve for x
    x = 61,093,603.49/7,867.40
  6. Step 6: Final answer
    x = 7,765.42

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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.