Home / 12,447.36-18,627.17-7,769.57

Finding the Fourth Proportional to 12,447.36, 18,627.17 and 7,769.57

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Solution

The fourth proportional to 12,447.36, 18,627.17 and 7,769.57 is: 11,626.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.36 : 18,627.17 = 7,769.57 : x
  2. Step 2: Convert to fraction form
    12,447.36/18,627.17 = 7,769.57/x
  3. Step 3: Cross multiply
    12,447.36x = 18,627.17 × 7,769.57
  4. Step 4: Simplify right side
    12,447.36x = 144,724,969.23
  5. Step 5: Solve for x
    x = 144,724,969.23/12,447.36
  6. Step 6: Final answer
    x = 11,626.96

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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.