Home / 12,402.12-18,602.94-3,636.84

Finding the Fourth Proportional to 12,402.12, 18,602.94 and 3,636.84

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Solution

The fourth proportional to 12,402.12, 18,602.94 and 3,636.84 is: 5,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.12 : 18,602.94 = 3,636.84 : x
  2. Step 2: Convert to fraction form
    12,402.12/18,602.94 = 3,636.84/x
  3. Step 3: Cross multiply
    12,402.12x = 18,602.94 × 3,636.84
  4. Step 4: Simplify right side
    12,402.12x = 67,655,916.31
  5. Step 5: Solve for x
    x = 67,655,916.31/12,402.12
  6. Step 6: Final answer
    x = 5,455.19

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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.