Home / 7,839.64-10,822.07-4,815.25

Finding the Fourth Proportional to 7,839.64, 10,822.07 and 4,815.25

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Solution

The fourth proportional to 7,839.64, 10,822.07 and 4,815.25 is: 6,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.64 : 10,822.07 = 4,815.25 : x
  2. Step 2: Convert to fraction form
    7,839.64/10,822.07 = 4,815.25/x
  3. Step 3: Cross multiply
    7,839.64x = 10,822.07 × 4,815.25
  4. Step 4: Simplify right side
    7,839.64x = 52,110,972.57
  5. Step 5: Solve for x
    x = 52,110,972.57/7,839.64
  6. Step 6: Final answer
    x = 6,647.11

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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.