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Finding the Fourth Proportional to 9,740.88, 14,620 and 4,549.68

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Solution

The fourth proportional to 9,740.88, 14,620 and 4,549.68 is: 6,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,740.88 : 14,620 = 4,549.68 : x
  2. Step 2: Convert to fraction form
    9,740.88/14,620 = 4,549.68/x
  3. Step 3: Cross multiply
    9,740.88x = 14,620 × 4,549.68
  4. Step 4: Simplify right side
    9,740.88x = 66,516,321.60
  5. Step 5: Solve for x
    x = 66,516,321.60/9,740.88
  6. Step 6: Final answer
    x = 6,828.57

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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.