Home / 9,683.78-13,361.54-6,331.51

Finding the Fourth Proportional to 9,683.78, 13,361.54 and 6,331.51

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Solution

The fourth proportional to 9,683.78, 13,361.54 and 6,331.51 is: 8,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,683.78 : 13,361.54 = 6,331.51 : x
  2. Step 2: Convert to fraction form
    9,683.78/13,361.54 = 6,331.51/x
  3. Step 3: Cross multiply
    9,683.78x = 13,361.54 × 6,331.51
  4. Step 4: Simplify right side
    9,683.78x = 84,598,709.17
  5. Step 5: Solve for x
    x = 84,598,709.17/9,683.78
  6. Step 6: Final answer
    x = 8,736.13

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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.