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Finding the Fourth Proportional to 11,031.48, 15,223.68 and 7,051.68

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Solution

The fourth proportional to 11,031.48, 15,223.68 and 7,051.68 is: 9,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.48 : 15,223.68 = 7,051.68 : x
  2. Step 2: Convert to fraction form
    11,031.48/15,223.68 = 7,051.68/x
  3. Step 3: Cross multiply
    11,031.48x = 15,223.68 × 7,051.68
  4. Step 4: Simplify right side
    11,031.48x = 107,352,519.78
  5. Step 5: Solve for x
    x = 107,352,519.78/11,031.48
  6. Step 6: Final answer
    x = 9,731.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.