Home / 7,645.02-10,550.62-4,287.78

Finding the Fourth Proportional to 7,645.02, 10,550.62 and 4,287.78

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Solution

The fourth proportional to 7,645.02, 10,550.62 and 4,287.78 is: 5,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,645.02 : 10,550.62 = 4,287.78 : x
  2. Step 2: Convert to fraction form
    7,645.02/10,550.62 = 4,287.78/x
  3. Step 3: Cross multiply
    7,645.02x = 10,550.62 × 4,287.78
  4. Step 4: Simplify right side
    7,645.02x = 45,238,737.42
  5. Step 5: Solve for x
    x = 45,238,737.42/7,645.02
  6. Step 6: Final answer
    x = 5,917.41

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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.