Home / 7,867.58-10,857.76-4,331.00

Finding the Fourth Proportional to 7,867.58, 10,857.76 and 4,331.00

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Solution

The fourth proportional to 7,867.58, 10,857.76 and 4,331.00 is: 5,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.58 : 10,857.76 = 4,331.00 : x
  2. Step 2: Convert to fraction form
    7,867.58/10,857.76 = 4,331.00/x
  3. Step 3: Cross multiply
    7,867.58x = 10,857.76 × 4,331.00
  4. Step 4: Simplify right side
    7,867.58x = 47,024,974.88
  5. Step 5: Solve for x
    x = 47,024,974.88/7,867.58
  6. Step 6: Final answer
    x = 5,977.06

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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.