Home / 8,990.09-12,406.37-5,011.27

Finding the Fourth Proportional to 8,990.09, 12,406.37 and 5,011.27

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Solution

The fourth proportional to 8,990.09, 12,406.37 and 5,011.27 is: 6,915.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.09 : 12,406.37 = 5,011.27 : x
  2. Step 2: Convert to fraction form
    8,990.09/12,406.37 = 5,011.27/x
  3. Step 3: Cross multiply
    8,990.09x = 12,406.37 × 5,011.27
  4. Step 4: Simplify right side
    8,990.09x = 62,171,613.72
  5. Step 5: Solve for x
    x = 62,171,613.72/8,990.09
  6. Step 6: Final answer
    x = 6,915.57

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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.