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Finding the Fourth Proportional to 12,551.60, 17,315.16 and 7,514.48

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Solution

The fourth proportional to 12,551.60, 17,315.16 and 7,514.48 is: 10,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.60 : 17,315.16 = 7,514.48 : x
  2. Step 2: Convert to fraction form
    12,551.60/17,315.16 = 7,514.48/x
  3. Step 3: Cross multiply
    12,551.60x = 17,315.16 × 7,514.48
  4. Step 4: Simplify right side
    12,551.60x = 130,114,423.52
  5. Step 5: Solve for x
    x = 130,114,423.52/12,551.60
  6. Step 6: Final answer
    x = 10,366.36

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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.