Home / 7,857.12-10,838.34-6,752.64

Finding the Fourth Proportional to 7,857.12, 10,838.34 and 6,752.64

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Solution

The fourth proportional to 7,857.12, 10,838.34 and 6,752.64 is: 9,314.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.12 : 10,838.34 = 6,752.64 : x
  2. Step 2: Convert to fraction form
    7,857.12/10,838.34 = 6,752.64/x
  3. Step 3: Cross multiply
    7,857.12x = 10,838.34 × 6,752.64
  4. Step 4: Simplify right side
    7,857.12x = 73,187,408.22
  5. Step 5: Solve for x
    x = 73,187,408.22/7,857.12
  6. Step 6: Final answer
    x = 9,314.79

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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.