Home / 19,748.72-29,630.91-11,866.07

Finding the Fourth Proportional to 19,748.72, 29,630.91 and 11,866.07

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Solution

The fourth proportional to 19,748.72, 29,630.91 and 11,866.07 is: 17,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,748.72 : 29,630.91 = 11,866.07 : x
  2. Step 2: Convert to fraction form
    19,748.72/29,630.91 = 11,866.07/x
  3. Step 3: Cross multiply
    19,748.72x = 29,630.91 × 11,866.07
  4. Step 4: Simplify right side
    19,748.72x = 351,602,452.22
  5. Step 5: Solve for x
    x = 351,602,452.22/19,748.72
  6. Step 6: Final answer
    x = 17,803.81

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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.