Home / 12,519.48-18,705.69-12,083.40

Finding the Fourth Proportional to 12,519.48, 18,705.69 and 12,083.40

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Solution

The fourth proportional to 12,519.48, 18,705.69 and 12,083.40 is: 18,054.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.48 : 18,705.69 = 12,083.40 : x
  2. Step 2: Convert to fraction form
    12,519.48/18,705.69 = 12,083.40/x
  3. Step 3: Cross multiply
    12,519.48x = 18,705.69 × 12,083.40
  4. Step 4: Simplify right side
    12,519.48x = 226,028,334.55
  5. Step 5: Solve for x
    x = 226,028,334.55/12,519.48
  6. Step 6: Final answer
    x = 18,054.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.