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Finding the Fourth Proportional to 7,272.45, 10,036.10 and 4,086.45

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Solution

The fourth proportional to 7,272.45, 10,036.10 and 4,086.45 is: 5,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.45 : 10,036.10 = 4,086.45 : x
  2. Step 2: Convert to fraction form
    7,272.45/10,036.10 = 4,086.45/x
  3. Step 3: Cross multiply
    7,272.45x = 10,036.10 × 4,086.45
  4. Step 4: Simplify right side
    7,272.45x = 41,012,031.06
  5. Step 5: Solve for x
    x = 41,012,031.06/7,272.45
  6. Step 6: Final answer
    x = 5,639.37

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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.