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Finding the Fourth Proportional to 9,719.74, 14,503.78 and 8,672.54

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Solution

The fourth proportional to 9,719.74, 14,503.78 and 8,672.54 is: 12,941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.74 : 14,503.78 = 8,672.54 : x
  2. Step 2: Convert to fraction form
    9,719.74/14,503.78 = 8,672.54/x
  3. Step 3: Cross multiply
    9,719.74x = 14,503.78 × 8,672.54
  4. Step 4: Simplify right side
    9,719.74x = 125,784,612.20
  5. Step 5: Solve for x
    x = 125,784,612.20/9,719.74
  6. Step 6: Final answer
    x = 12,941.15

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.