Home / 9,790.81-13,511.42-5,314.60

Finding the Fourth Proportional to 9,790.81, 13,511.42 and 5,314.60

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Solution

The fourth proportional to 9,790.81, 13,511.42 and 5,314.60 is: 7,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,790.81 : 13,511.42 = 5,314.60 : x
  2. Step 2: Convert to fraction form
    9,790.81/13,511.42 = 5,314.60/x
  3. Step 3: Cross multiply
    9,790.81x = 13,511.42 × 5,314.60
  4. Step 4: Simplify right side
    9,790.81x = 71,807,792.73
  5. Step 5: Solve for x
    x = 71,807,792.73/9,790.81
  6. Step 6: Final answer
    x = 7,334.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.