Home / 7,857.56-10,843.32-4,320.74

Finding the Fourth Proportional to 7,857.56, 10,843.32 and 4,320.74

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Solution

The fourth proportional to 7,857.56, 10,843.32 and 4,320.74 is: 5,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.56 : 10,843.32 = 4,320.74 : x
  2. Step 2: Convert to fraction form
    7,857.56/10,843.32 = 4,320.74/x
  3. Step 3: Cross multiply
    7,857.56x = 10,843.32 × 4,320.74
  4. Step 4: Simplify right side
    7,857.56x = 46,851,185.46
  5. Step 5: Solve for x
    x = 46,851,185.46/7,857.56
  6. Step 6: Final answer
    x = 5,962.56

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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.