Home / 9,145.72-12,621.18-4,954

Finding the Fourth Proportional to 9,145.72, 12,621.18 and 4,954

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Solution

The fourth proportional to 9,145.72, 12,621.18 and 4,954 is: 6,836.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.72 : 12,621.18 = 4,954 : x
  2. Step 2: Convert to fraction form
    9,145.72/12,621.18 = 4,954/x
  3. Step 3: Cross multiply
    9,145.72x = 12,621.18 × 4,954
  4. Step 4: Simplify right side
    9,145.72x = 62,525,325.72
  5. Step 5: Solve for x
    x = 62,525,325.72/9,145.72
  6. Step 6: Final answer
    x = 6,836.57

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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.