Home / 12,730.40-19,091.03-4,408.18

Finding the Fourth Proportional to 12,730.40, 19,091.03 and 4,408.18

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Solution

The fourth proportional to 12,730.40, 19,091.03 and 4,408.18 is: 6,610.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.40 : 19,091.03 = 4,408.18 : x
  2. Step 2: Convert to fraction form
    12,730.40/19,091.03 = 4,408.18/x
  3. Step 3: Cross multiply
    12,730.40x = 19,091.03 × 4,408.18
  4. Step 4: Simplify right side
    12,730.40x = 84,156,601.17
  5. Step 5: Solve for x
    x = 84,156,601.17/12,730.40
  6. Step 6: Final answer
    x = 6,610.68

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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.