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Finding the Fourth Proportional to 13,031.88, 19,549.71 and 7,484.28

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Solution

The fourth proportional to 13,031.88, 19,549.71 and 7,484.28 is: 11,227.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.88 : 19,549.71 = 7,484.28 : x
  2. Step 2: Convert to fraction form
    13,031.88/19,549.71 = 7,484.28/x
  3. Step 3: Cross multiply
    13,031.88x = 19,549.71 × 7,484.28
  4. Step 4: Simplify right side
    13,031.88x = 146,315,503.56
  5. Step 5: Solve for x
    x = 146,315,503.56/13,031.88
  6. Step 6: Final answer
    x = 11,227.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.