Home / 12,447.55-18,640.58-9,277.39

Finding the Fourth Proportional to 12,447.55, 18,640.58 and 9,277.39

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Solution

The fourth proportional to 12,447.55, 18,640.58 and 9,277.39 is: 13,893.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.55 : 18,640.58 = 9,277.39 : x
  2. Step 2: Convert to fraction form
    12,447.55/18,640.58 = 9,277.39/x
  3. Step 3: Cross multiply
    12,447.55x = 18,640.58 × 9,277.39
  4. Step 4: Simplify right side
    12,447.55x = 172,935,895.48
  5. Step 5: Solve for x
    x = 172,935,895.48/12,447.55
  6. Step 6: Final answer
    x = 13,893.16

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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.