Home / 12,781.37-19,172.19-4,461.39

Finding the Fourth Proportional to 12,781.37, 19,172.19 and 4,461.39

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Solution

The fourth proportional to 12,781.37, 19,172.19 and 4,461.39 is: 6,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.37 : 19,172.19 = 4,461.39 : x
  2. Step 2: Convert to fraction form
    12,781.37/19,172.19 = 4,461.39/x
  3. Step 3: Cross multiply
    12,781.37x = 19,172.19 × 4,461.39
  4. Step 4: Simplify right side
    12,781.37x = 85,534,616.74
  5. Step 5: Solve for x
    x = 85,534,616.74/12,781.37
  6. Step 6: Final answer
    x = 6,692.13

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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.