Home / 9,399.23-12,970.26-5,149.61

Finding the Fourth Proportional to 9,399.23, 12,970.26 and 5,149.61

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Solution

The fourth proportional to 9,399.23, 12,970.26 and 5,149.61 is: 7,106.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,399.23 : 12,970.26 = 5,149.61 : x
  2. Step 2: Convert to fraction form
    9,399.23/12,970.26 = 5,149.61/x
  3. Step 3: Cross multiply
    9,399.23x = 12,970.26 × 5,149.61
  4. Step 4: Simplify right side
    9,399.23x = 66,791,813.02
  5. Step 5: Solve for x
    x = 66,791,813.02/9,399.23
  6. Step 6: Final answer
    x = 7,106.09

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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.