Home / 11,551.41-15,941.43-6,515.82

Finding the Fourth Proportional to 11,551.41, 15,941.43 and 6,515.82

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Solution

The fourth proportional to 11,551.41, 15,941.43 and 6,515.82 is: 8,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.41 : 15,941.43 = 6,515.82 : x
  2. Step 2: Convert to fraction form
    11,551.41/15,941.43 = 6,515.82/x
  3. Step 3: Cross multiply
    11,551.41x = 15,941.43 × 6,515.82
  4. Step 4: Simplify right side
    11,551.41x = 103,871,488.42
  5. Step 5: Solve for x
    x = 103,871,488.42/11,551.41
  6. Step 6: Final answer
    x = 8,992.10

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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.