Home / 7,872.02-10,858.77-4,728.98

Finding the Fourth Proportional to 7,872.02, 10,858.77 and 4,728.98

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Solution

The fourth proportional to 7,872.02, 10,858.77 and 4,728.98 is: 6,523.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.02 : 10,858.77 = 4,728.98 : x
  2. Step 2: Convert to fraction form
    7,872.02/10,858.77 = 4,728.98/x
  3. Step 3: Cross multiply
    7,872.02x = 10,858.77 × 4,728.98
  4. Step 4: Simplify right side
    7,872.02x = 51,350,906.15
  5. Step 5: Solve for x
    x = 51,350,906.15/7,872.02
  6. Step 6: Final answer
    x = 6,523.22

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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.