Home / 7,639.40-11,466.30-4,723.40

Finding the Fourth Proportional to 7,639.40, 11,466.30 and 4,723.40

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Solution

The fourth proportional to 7,639.40, 11,466.30 and 4,723.40 is: 7,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.40 : 11,466.30 = 4,723.40 : x
  2. Step 2: Convert to fraction form
    7,639.40/11,466.30 = 4,723.40/x
  3. Step 3: Cross multiply
    7,639.40x = 11,466.30 × 4,723.40
  4. Step 4: Simplify right side
    7,639.40x = 54,159,921.42
  5. Step 5: Solve for x
    x = 54,159,921.42/7,639.40
  6. Step 6: Final answer
    x = 7,089.55

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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.