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Finding the Fourth Proportional to 10,639.36, 15,953.04 and 5,094.04

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Solution

The fourth proportional to 10,639.36, 15,953.04 and 5,094.04 is: 7,638.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.36 : 15,953.04 = 5,094.04 : x
  2. Step 2: Convert to fraction form
    10,639.36/15,953.04 = 5,094.04/x
  3. Step 3: Cross multiply
    10,639.36x = 15,953.04 × 5,094.04
  4. Step 4: Simplify right side
    10,639.36x = 81,265,423.88
  5. Step 5: Solve for x
    x = 81,265,423.88/10,639.36
  6. Step 6: Final answer
    x = 7,638.19

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Why These Related Problems?

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