Home / 11,175.32-15,420.22-6,458.69

Finding the Fourth Proportional to 11,175.32, 15,420.22 and 6,458.69

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Solution

The fourth proportional to 11,175.32, 15,420.22 and 6,458.69 is: 8,912.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.32 : 15,420.22 = 6,458.69 : x
  2. Step 2: Convert to fraction form
    11,175.32/15,420.22 = 6,458.69/x
  3. Step 3: Cross multiply
    11,175.32x = 15,420.22 × 6,458.69
  4. Step 4: Simplify right side
    11,175.32x = 99,594,420.71
  5. Step 5: Solve for x
    x = 99,594,420.71/11,175.32
  6. Step 6: Final answer
    x = 8,912.00

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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.