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Finding the Fourth Proportional to 10,528.72, 15,802.64 and 5,602.48

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Solution

The fourth proportional to 10,528.72, 15,802.64 and 5,602.48 is: 8,408.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.72 : 15,802.64 = 5,602.48 : x
  2. Step 2: Convert to fraction form
    10,528.72/15,802.64 = 5,602.48/x
  3. Step 3: Cross multiply
    10,528.72x = 15,802.64 × 5,602.48
  4. Step 4: Simplify right side
    10,528.72x = 88,533,974.55
  5. Step 5: Solve for x
    x = 88,533,974.55/10,528.72
  6. Step 6: Final answer
    x = 8,408.81

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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.