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Finding the Fourth Proportional to 12,500.48, 18,751.05 and 5,476.88

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Solution

The fourth proportional to 12,500.48, 18,751.05 and 5,476.88 is: 8,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.48 : 18,751.05 = 5,476.88 : x
  2. Step 2: Convert to fraction form
    12,500.48/18,751.05 = 5,476.88/x
  3. Step 3: Cross multiply
    12,500.48x = 18,751.05 × 5,476.88
  4. Step 4: Simplify right side
    12,500.48x = 102,697,250.72
  5. Step 5: Solve for x
    x = 102,697,250.72/12,500.48
  6. Step 6: Final answer
    x = 8,215.46

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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.