Home / 13,160.42-19,740.64-6,579.98

Finding the Fourth Proportional to 13,160.42, 19,740.64 and 6,579.98

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Solution

The fourth proportional to 13,160.42, 19,740.64 and 6,579.98 is: 9,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.42 : 19,740.64 = 6,579.98 : x
  2. Step 2: Convert to fraction form
    13,160.42/19,740.64 = 6,579.98/x
  3. Step 3: Cross multiply
    13,160.42x = 19,740.64 × 6,579.98
  4. Step 4: Simplify right side
    13,160.42x = 129,893,016.39
  5. Step 5: Solve for x
    x = 129,893,016.39/13,160.42
  6. Step 6: Final answer
    x = 9,869.97

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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.