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Finding the Fourth Proportional to 7,604.84, 11,400.54 and 7,145.96

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Solution

The fourth proportional to 7,604.84, 11,400.54 and 7,145.96 is: 10,712.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,604.84 : 11,400.54 = 7,145.96 : x
  2. Step 2: Convert to fraction form
    7,604.84/11,400.54 = 7,145.96/x
  3. Step 3: Cross multiply
    7,604.84x = 11,400.54 × 7,145.96
  4. Step 4: Simplify right side
    7,604.84x = 81,467,802.82
  5. Step 5: Solve for x
    x = 81,467,802.82/7,604.84
  6. Step 6: Final answer
    x = 10,712.63

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1.5x scale

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.