Home / 12,837.15-19,258.47-4,072.68

Finding the Fourth Proportional to 12,837.15, 19,258.47 and 4,072.68

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Solution

The fourth proportional to 12,837.15, 19,258.47 and 4,072.68 is: 6,109.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.15 : 19,258.47 = 4,072.68 : x
  2. Step 2: Convert to fraction form
    12,837.15/19,258.47 = 4,072.68/x
  3. Step 3: Cross multiply
    12,837.15x = 19,258.47 × 4,072.68
  4. Step 4: Simplify right side
    12,837.15x = 78,433,585.60
  5. Step 5: Solve for x
    x = 78,433,585.60/12,837.15
  6. Step 6: Final answer
    x = 6,109.89

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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.