Home / 7,932.88-11,899.34-2,386.80

Finding the Fourth Proportional to 7,932.88, 11,899.34 and 2,386.80

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Solution

The fourth proportional to 7,932.88, 11,899.34 and 2,386.80 is: 3,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,932.88 : 11,899.34 = 2,386.80 : x
  2. Step 2: Convert to fraction form
    7,932.88/11,899.34 = 2,386.80/x
  3. Step 3: Cross multiply
    7,932.88x = 11,899.34 × 2,386.80
  4. Step 4: Simplify right side
    7,932.88x = 28,401,344.71
  5. Step 5: Solve for x
    x = 28,401,344.71/7,932.88
  6. Step 6: Final answer
    x = 3,580.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.