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Finding the Fourth Proportional to 12,500.76, 18,751.16 and 3,741.84

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Solution

The fourth proportional to 12,500.76, 18,751.16 and 3,741.84 is: 5,612.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.76 : 18,751.16 = 3,741.84 : x
  2. Step 2: Convert to fraction form
    12,500.76/18,751.16 = 3,741.84/x
  3. Step 3: Cross multiply
    12,500.76x = 18,751.16 × 3,741.84
  4. Step 4: Simplify right side
    12,500.76x = 70,163,840.53
  5. Step 5: Solve for x
    x = 70,163,840.53/12,500.76
  6. Step 6: Final answer
    x = 5,612.77

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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.