Home / 12,265.83-18,398.95-3,944.30

Finding the Fourth Proportional to 12,265.83, 18,398.95 and 3,944.30

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Solution

The fourth proportional to 12,265.83, 18,398.95 and 3,944.30 is: 5,916.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.83 : 18,398.95 = 3,944.30 : x
  2. Step 2: Convert to fraction form
    12,265.83/18,398.95 = 3,944.30/x
  3. Step 3: Cross multiply
    12,265.83x = 18,398.95 × 3,944.30
  4. Step 4: Simplify right side
    12,265.83x = 72,570,876.63
  5. Step 5: Solve for x
    x = 72,570,876.63/12,265.83
  6. Step 6: Final answer
    x = 5,916.51

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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.