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Finding the Fourth Proportional to 9,670.88, 14,506.63 and 3,430.79

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Solution

The fourth proportional to 9,670.88, 14,506.63 and 3,430.79 is: 5,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,670.88 : 14,506.63 = 3,430.79 : x
  2. Step 2: Convert to fraction form
    9,670.88/14,506.63 = 3,430.79/x
  3. Step 3: Cross multiply
    9,670.88x = 14,506.63 × 3,430.79
  4. Step 4: Simplify right side
    9,670.88x = 49,769,201.14
  5. Step 5: Solve for x
    x = 49,769,201.14/9,670.88
  6. Step 6: Final answer
    x = 5,146.29

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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.