Home / 7,571.02-10,447.20-4,213.30

Finding the Fourth Proportional to 7,571.02, 10,447.20 and 4,213.30

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Solution

The fourth proportional to 7,571.02, 10,447.20 and 4,213.30 is: 5,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,571.02 : 10,447.20 = 4,213.30 : x
  2. Step 2: Convert to fraction form
    7,571.02/10,447.20 = 4,213.30/x
  3. Step 3: Cross multiply
    7,571.02x = 10,447.20 × 4,213.30
  4. Step 4: Simplify right side
    7,571.02x = 44,017,187.76
  5. Step 5: Solve for x
    x = 44,017,187.76/7,571.02
  6. Step 6: Final answer
    x = 5,813.90

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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.