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Finding the Fourth Proportional to 12,525, 18,788.75 and 4,629.59

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Solution

The fourth proportional to 12,525, 18,788.75 and 4,629.59 is: 6,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525 : 18,788.75 = 4,629.59 : x
  2. Step 2: Convert to fraction form
    12,525/18,788.75 = 4,629.59/x
  3. Step 3: Cross multiply
    12,525x = 18,788.75 × 4,629.59
  4. Step 4: Simplify right side
    12,525x = 86,984,209.11
  5. Step 5: Solve for x
    x = 86,984,209.11/12,525
  6. Step 6: Final answer
    x = 6,944.85

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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.