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Finding the Fourth Proportional to 7,775.69, 10,728.54 and 4,750.04

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Solution

The fourth proportional to 7,775.69, 10,728.54 and 4,750.04 is: 6,553.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.69 : 10,728.54 = 4,750.04 : x
  2. Step 2: Convert to fraction form
    7,775.69/10,728.54 = 4,750.04/x
  3. Step 3: Cross multiply
    7,775.69x = 10,728.54 × 4,750.04
  4. Step 4: Simplify right side
    7,775.69x = 50,960,994.14
  5. Step 5: Solve for x
    x = 50,960,994.14/7,775.69
  6. Step 6: Final answer
    x = 6,553.89

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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.