Home / 7,916.55-11,870.44-3,239.84

Finding the Fourth Proportional to 7,916.55, 11,870.44 and 3,239.84

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Solution

The fourth proportional to 7,916.55, 11,870.44 and 3,239.84 is: 4,857.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.55 : 11,870.44 = 3,239.84 : x
  2. Step 2: Convert to fraction form
    7,916.55/11,870.44 = 3,239.84/x
  3. Step 3: Cross multiply
    7,916.55x = 11,870.44 × 3,239.84
  4. Step 4: Simplify right side
    7,916.55x = 38,458,347.91
  5. Step 5: Solve for x
    x = 38,458,347.91/7,916.55
  6. Step 6: Final answer
    x = 4,857.97

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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.