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Finding the Fourth Proportional to 8,530.56, 12,795.12 and 3,913.56

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Solution

The fourth proportional to 8,530.56, 12,795.12 and 3,913.56 is: 5,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.56 : 12,795.12 = 3,913.56 : x
  2. Step 2: Convert to fraction form
    8,530.56/12,795.12 = 3,913.56/x
  3. Step 3: Cross multiply
    8,530.56x = 12,795.12 × 3,913.56
  4. Step 4: Simplify right side
    8,530.56x = 50,074,469.83
  5. Step 5: Solve for x
    x = 50,074,469.83/8,530.56
  6. Step 6: Final answer
    x = 5,870.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.