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Finding the Fourth Proportional to 15,409.62, 21,258.53 and 9,032.99

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Solution

The fourth proportional to 15,409.62, 21,258.53 and 9,032.99 is: 12,461.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.62 : 21,258.53 = 9,032.99 : x
  2. Step 2: Convert to fraction form
    15,409.62/21,258.53 = 9,032.99/x
  3. Step 3: Cross multiply
    15,409.62x = 21,258.53 × 9,032.99
  4. Step 4: Simplify right side
    15,409.62x = 192,027,937.45
  5. Step 5: Solve for x
    x = 192,027,937.45/15,409.62
  6. Step 6: Final answer
    x = 12,461.56

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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.