Home / 13,709.79-20,597.54-8,789.04

Finding the Fourth Proportional to 13,709.79, 20,597.54 and 8,789.04

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Solution

The fourth proportional to 13,709.79, 20,597.54 and 8,789.04 is: 13,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.79 : 20,597.54 = 8,789.04 : x
  2. Step 2: Convert to fraction form
    13,709.79/20,597.54 = 8,789.04/x
  3. Step 3: Cross multiply
    13,709.79x = 20,597.54 × 8,789.04
  4. Step 4: Simplify right side
    13,709.79x = 181,032,559.02
  5. Step 5: Solve for x
    x = 181,032,559.02/13,709.79
  6. Step 6: Final answer
    x = 13,204.62

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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.