Home / 7,719.93-11,569.73-4,211.46

Finding the Fourth Proportional to 7,719.93, 11,569.73 and 4,211.46

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Solution

The fourth proportional to 7,719.93, 11,569.73 and 4,211.46 is: 6,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.93 : 11,569.73 = 4,211.46 : x
  2. Step 2: Convert to fraction form
    7,719.93/11,569.73 = 4,211.46/x
  3. Step 3: Cross multiply
    7,719.93x = 11,569.73 × 4,211.46
  4. Step 4: Simplify right side
    7,719.93x = 48,725,434.05
  5. Step 5: Solve for x
    x = 48,725,434.05/7,719.93
  6. Step 6: Final answer
    x = 6,311.64

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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.