Home / 7,622.28-11,418.66-4,325.40

Finding the Fourth Proportional to 7,622.28, 11,418.66 and 4,325.40

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Solution

The fourth proportional to 7,622.28, 11,418.66 and 4,325.40 is: 6,479.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.28 : 11,418.66 = 4,325.40 : x
  2. Step 2: Convert to fraction form
    7,622.28/11,418.66 = 4,325.40/x
  3. Step 3: Cross multiply
    7,622.28x = 11,418.66 × 4,325.40
  4. Step 4: Simplify right side
    7,622.28x = 49,390,271.96
  5. Step 5: Solve for x
    x = 49,390,271.96/7,622.28
  6. Step 6: Final answer
    x = 6,479.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.