Home / 11,135.16-15,369.90-6,422.52

Finding the Fourth Proportional to 11,135.16, 15,369.90 and 6,422.52

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Solution

The fourth proportional to 11,135.16, 15,369.90 and 6,422.52 is: 8,865.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.16 : 15,369.90 = 6,422.52 : x
  2. Step 2: Convert to fraction form
    11,135.16/15,369.90 = 6,422.52/x
  3. Step 3: Cross multiply
    11,135.16x = 15,369.90 × 6,422.52
  4. Step 4: Simplify right side
    11,135.16x = 98,713,490.15
  5. Step 5: Solve for x
    x = 98,713,490.15/11,135.16
  6. Step 6: Final answer
    x = 8,865.03

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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.