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Finding the Fourth Proportional to 9,442.61, 13,030.16 and 5,409.45

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Solution

The fourth proportional to 9,442.61, 13,030.16 and 5,409.45 is: 7,464.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,442.61 : 13,030.16 = 5,409.45 : x
  2. Step 2: Convert to fraction form
    9,442.61/13,030.16 = 5,409.45/x
  3. Step 3: Cross multiply
    9,442.61x = 13,030.16 × 5,409.45
  4. Step 4: Simplify right side
    9,442.61x = 70,486,012.54
  5. Step 5: Solve for x
    x = 70,486,012.54/9,442.61
  6. Step 6: Final answer
    x = 7,464.68

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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.