Home / 11,458.37-15,812.16-6,422.60

Finding the Fourth Proportional to 11,458.37, 15,812.16 and 6,422.60

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Solution

The fourth proportional to 11,458.37, 15,812.16 and 6,422.60 is: 8,862.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,458.37 : 15,812.16 = 6,422.60 : x
  2. Step 2: Convert to fraction form
    11,458.37/15,812.16 = 6,422.60/x
  3. Step 3: Cross multiply
    11,458.37x = 15,812.16 × 6,422.60
  4. Step 4: Simplify right side
    11,458.37x = 101,555,178.82
  5. Step 5: Solve for x
    x = 101,555,178.82/11,458.37
  6. Step 6: Final answer
    x = 8,862.97

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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.