Home / 12,745.71-19,111.68-6,165.54

Finding the Fourth Proportional to 12,745.71, 19,111.68 and 6,165.54

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Solution

The fourth proportional to 12,745.71, 19,111.68 and 6,165.54 is: 9,244.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.71 : 19,111.68 = 6,165.54 : x
  2. Step 2: Convert to fraction form
    12,745.71/19,111.68 = 6,165.54/x
  3. Step 3: Cross multiply
    12,745.71x = 19,111.68 × 6,165.54
  4. Step 4: Simplify right side
    12,745.71x = 117,833,827.51
  5. Step 5: Solve for x
    x = 117,833,827.51/12,745.71
  6. Step 6: Final answer
    x = 9,244.98

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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.