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Finding the Fourth Proportional to 10,368.30, 15,552.45 and 9,072.30

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Solution

The fourth proportional to 10,368.30, 15,552.45 and 9,072.30 is: 13,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.30 : 15,552.45 = 9,072.30 : x
  2. Step 2: Convert to fraction form
    10,368.30/15,552.45 = 9,072.30/x
  3. Step 3: Cross multiply
    10,368.30x = 15,552.45 × 9,072.30
  4. Step 4: Simplify right side
    10,368.30x = 141,096,492.14
  5. Step 5: Solve for x
    x = 141,096,492.14/10,368.30
  6. Step 6: Final answer
    x = 13,608.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.