Home / 12,501.90-18,750.38-3,618.27

Finding the Fourth Proportional to 12,501.90, 18,750.38 and 3,618.27

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Solution

The fourth proportional to 12,501.90, 18,750.38 and 3,618.27 is: 5,426.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.90 : 18,750.38 = 3,618.27 : x
  2. Step 2: Convert to fraction form
    12,501.90/18,750.38 = 3,618.27/x
  3. Step 3: Cross multiply
    12,501.90x = 18,750.38 × 3,618.27
  4. Step 4: Simplify right side
    12,501.90x = 67,843,919.35
  5. Step 5: Solve for x
    x = 67,843,919.35/12,501.90
  6. Step 6: Final answer
    x = 5,426.69

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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.