Home / 7,690.63-11,539.59-4,576.79

Finding the Fourth Proportional to 7,690.63, 11,539.59 and 4,576.79

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Solution

The fourth proportional to 7,690.63, 11,539.59 and 4,576.79 is: 6,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.63 : 11,539.59 = 4,576.79 : x
  2. Step 2: Convert to fraction form
    7,690.63/11,539.59 = 4,576.79/x
  3. Step 3: Cross multiply
    7,690.63x = 11,539.59 × 4,576.79
  4. Step 4: Simplify right side
    7,690.63x = 52,814,280.12
  5. Step 5: Solve for x
    x = 52,814,280.12/7,690.63
  6. Step 6: Final answer
    x = 6,867.35

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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.