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Finding the Fourth Proportional to 7,527.54, 10,388.04 and 4,215.54

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Solution

The fourth proportional to 7,527.54, 10,388.04 and 4,215.54 is: 5,817.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,527.54 : 10,388.04 = 4,215.54 : x
  2. Step 2: Convert to fraction form
    7,527.54/10,388.04 = 4,215.54/x
  3. Step 3: Cross multiply
    7,527.54x = 10,388.04 × 4,215.54
  4. Step 4: Simplify right side
    7,527.54x = 43,791,198.14
  5. Step 5: Solve for x
    x = 43,791,198.14/7,527.54
  6. Step 6: Final answer
    x = 5,817.46

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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.