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Finding the Fourth Proportional to 7,662.78, 11,483.15 and 4,369.05

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Solution

The fourth proportional to 7,662.78, 11,483.15 and 4,369.05 is: 6,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.78 : 11,483.15 = 4,369.05 : x
  2. Step 2: Convert to fraction form
    7,662.78/11,483.15 = 4,369.05/x
  3. Step 3: Cross multiply
    7,662.78x = 11,483.15 × 4,369.05
  4. Step 4: Simplify right side
    7,662.78x = 50,170,434.66
  5. Step 5: Solve for x
    x = 50,170,434.66/7,662.78
  6. Step 6: Final answer
    x = 6,547.29

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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.