Home / 7,629.86-10,530.10-4,647.44

Finding the Fourth Proportional to 7,629.86, 10,530.10 and 4,647.44

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Solution

The fourth proportional to 7,629.86, 10,530.10 and 4,647.44 is: 6,414.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.86 : 10,530.10 = 4,647.44 : x
  2. Step 2: Convert to fraction form
    7,629.86/10,530.10 = 4,647.44/x
  3. Step 3: Cross multiply
    7,629.86x = 10,530.10 × 4,647.44
  4. Step 4: Simplify right side
    7,629.86x = 48,938,007.94
  5. Step 5: Solve for x
    x = 48,938,007.94/7,629.86
  6. Step 6: Final answer
    x = 6,414.01

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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.