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Finding the Fourth Proportional to 7,625.56, 10,520.90 and 4,482.76

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Solution

The fourth proportional to 7,625.56, 10,520.90 and 4,482.76 is: 6,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,625.56 : 10,520.90 = 4,482.76 : x
  2. Step 2: Convert to fraction form
    7,625.56/10,520.90 = 4,482.76/x
  3. Step 3: Cross multiply
    7,625.56x = 10,520.90 × 4,482.76
  4. Step 4: Simplify right side
    7,625.56x = 47,162,669.68
  5. Step 5: Solve for x
    x = 47,162,669.68/7,625.56
  6. Step 6: Final answer
    x = 6,184.81

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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.