Home / 19,614.72-29,421.12-7,769.28

Finding the Fourth Proportional to 19,614.72, 29,421.12 and 7,769.28

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Solution

The fourth proportional to 19,614.72, 29,421.12 and 7,769.28 is: 11,653.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.72 : 29,421.12 = 7,769.28 : x
  2. Step 2: Convert to fraction form
    19,614.72/29,421.12 = 7,769.28/x
  3. Step 3: Cross multiply
    19,614.72x = 29,421.12 × 7,769.28
  4. Step 4: Simplify right side
    19,614.72x = 228,580,919.19
  5. Step 5: Solve for x
    x = 228,580,919.19/19,614.72
  6. Step 6: Final answer
    x = 11,653.54

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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.