Home / 11,129.94-15,358.27-6,652.80

Finding the Fourth Proportional to 11,129.94, 15,358.27 and 6,652.80

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Solution

The fourth proportional to 11,129.94, 15,358.27 and 6,652.80 is: 9,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.94 : 15,358.27 = 6,652.80 : x
  2. Step 2: Convert to fraction form
    11,129.94/15,358.27 = 6,652.80/x
  3. Step 3: Cross multiply
    11,129.94x = 15,358.27 × 6,652.80
  4. Step 4: Simplify right side
    11,129.94x = 102,175,498.66
  5. Step 5: Solve for x
    x = 102,175,498.66/11,129.94
  6. Step 6: Final answer
    x = 9,180.24

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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.