Home / 13,683.82-20,526.72-4,918.80

Finding the Fourth Proportional to 13,683.82, 20,526.72 and 4,918.80

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Solution

The fourth proportional to 13,683.82, 20,526.72 and 4,918.80 is: 7,378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.82 : 20,526.72 = 4,918.80 : x
  2. Step 2: Convert to fraction form
    13,683.82/20,526.72 = 4,918.80/x
  3. Step 3: Cross multiply
    13,683.82x = 20,526.72 × 4,918.80
  4. Step 4: Simplify right side
    13,683.82x = 100,966,830.34
  5. Step 5: Solve for x
    x = 100,966,830.34/13,683.82
  6. Step 6: Final answer
    x = 7,378.56

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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.