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Finding the Fourth Proportional to 9,615.16, 13,269.42 and 5,637.55

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Solution

The fourth proportional to 9,615.16, 13,269.42 and 5,637.55 is: 7,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,615.16 : 13,269.42 = 5,637.55 : x
  2. Step 2: Convert to fraction form
    9,615.16/13,269.42 = 5,637.55/x
  3. Step 3: Cross multiply
    9,615.16x = 13,269.42 × 5,637.55
  4. Step 4: Simplify right side
    9,615.16x = 74,807,018.72
  5. Step 5: Solve for x
    x = 74,807,018.72/9,615.16
  6. Step 6: Final answer
    x = 7,780.11

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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.