Home / 8,511.99-12,756.30-4,343.23

Finding the Fourth Proportional to 8,511.99, 12,756.30 and 4,343.23

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Solution

The fourth proportional to 8,511.99, 12,756.30 and 4,343.23 is: 6,508.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.99 : 12,756.30 = 4,343.23 : x
  2. Step 2: Convert to fraction form
    8,511.99/12,756.30 = 4,343.23/x
  3. Step 3: Cross multiply
    8,511.99x = 12,756.30 × 4,343.23
  4. Step 4: Simplify right side
    8,511.99x = 55,403,515.31
  5. Step 5: Solve for x
    x = 55,403,515.31/8,511.99
  6. Step 6: Final answer
    x = 6,508.88

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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.