Home / 11,175.36-15,423.22-6,395.74

Finding the Fourth Proportional to 11,175.36, 15,423.22 and 6,395.74

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Solution

The fourth proportional to 11,175.36, 15,423.22 and 6,395.74 is: 8,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.36 : 15,423.22 = 6,395.74 : x
  2. Step 2: Convert to fraction form
    11,175.36/15,423.22 = 6,395.74/x
  3. Step 3: Cross multiply
    11,175.36x = 15,423.22 × 6,395.74
  4. Step 4: Simplify right side
    11,175.36x = 98,642,905.08
  5. Step 5: Solve for x
    x = 98,642,905.08/11,175.36
  6. Step 6: Final answer
    x = 8,826.82

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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.