Home / 9,420.26-12,989.32-6,012.69

Finding the Fourth Proportional to 9,420.26, 12,989.32 and 6,012.69

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Solution

The fourth proportional to 9,420.26, 12,989.32 and 6,012.69 is: 8,290.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.26 : 12,989.32 = 6,012.69 : x
  2. Step 2: Convert to fraction form
    9,420.26/12,989.32 = 6,012.69/x
  3. Step 3: Cross multiply
    9,420.26x = 12,989.32 × 6,012.69
  4. Step 4: Simplify right side
    9,420.26x = 78,100,754.47
  5. Step 5: Solve for x
    x = 78,100,754.47/9,420.26
  6. Step 6: Final answer
    x = 8,290.72

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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.