Home / 11,325.85-15,629.87-6,290.53

Finding the Fourth Proportional to 11,325.85, 15,629.87 and 6,290.53

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Solution

The fourth proportional to 11,325.85, 15,629.87 and 6,290.53 is: 8,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.85 : 15,629.87 = 6,290.53 : x
  2. Step 2: Convert to fraction form
    11,325.85/15,629.87 = 6,290.53/x
  3. Step 3: Cross multiply
    11,325.85x = 15,629.87 × 6,290.53
  4. Step 4: Simplify right side
    11,325.85x = 98,320,195.32
  5. Step 5: Solve for x
    x = 98,320,195.32/11,325.85
  6. Step 6: Final answer
    x = 8,681.05

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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.