Home / 7,669.79-11,503.56-2,123.51

Finding the Fourth Proportional to 7,669.79, 11,503.56 and 2,123.51

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Solution

The fourth proportional to 7,669.79, 11,503.56 and 2,123.51 is: 3,184.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.79 : 11,503.56 = 2,123.51 : x
  2. Step 2: Convert to fraction form
    7,669.79/11,503.56 = 2,123.51/x
  3. Step 3: Cross multiply
    7,669.79x = 11,503.56 × 2,123.51
  4. Step 4: Simplify right side
    7,669.79x = 24,427,924.70
  5. Step 5: Solve for x
    x = 24,427,924.70/7,669.79
  6. Step 6: Final answer
    x = 3,184.96

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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.