Home / 13,683.24-18,882.81-7,395.60

Finding the Fourth Proportional to 13,683.24, 18,882.81 and 7,395.60

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Solution

The fourth proportional to 13,683.24, 18,882.81 and 7,395.60 is: 10,205.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.24 : 18,882.81 = 7,395.60 : x
  2. Step 2: Convert to fraction form
    13,683.24/18,882.81 = 7,395.60/x
  3. Step 3: Cross multiply
    13,683.24x = 18,882.81 × 7,395.60
  4. Step 4: Simplify right side
    13,683.24x = 139,649,709.64
  5. Step 5: Solve for x
    x = 139,649,709.64/13,683.24
  6. Step 6: Final answer
    x = 10,205.89

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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.