Home / 6,899.20-10,347.78-2,515.63

Finding the Fourth Proportional to 6,899.20, 10,347.78 and 2,515.63

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Solution

The fourth proportional to 6,899.20, 10,347.78 and 2,515.63 is: 3,773.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.20 : 10,347.78 = 2,515.63 : x
  2. Step 2: Convert to fraction form
    6,899.20/10,347.78 = 2,515.63/x
  3. Step 3: Cross multiply
    6,899.20x = 10,347.78 × 2,515.63
  4. Step 4: Simplify right side
    6,899.20x = 26,031,185.80
  5. Step 5: Solve for x
    x = 26,031,185.80/6,899.20
  6. Step 6: Final answer
    x = 3,773.07

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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.