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Finding the Fourth Proportional to 11,479.62, 15,837.81 and 7,503.03

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Solution

The fourth proportional to 11,479.62, 15,837.81 and 7,503.03 is: 10,351.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.62 : 15,837.81 = 7,503.03 : x
  2. Step 2: Convert to fraction form
    11,479.62/15,837.81 = 7,503.03/x
  3. Step 3: Cross multiply
    11,479.62x = 15,837.81 × 7,503.03
  4. Step 4: Simplify right side
    11,479.62x = 118,831,563.56
  5. Step 5: Solve for x
    x = 118,831,563.56/11,479.62
  6. Step 6: Final answer
    x = 10,351.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.