Home / 13,538.49-20,308.26-4,177.67

Finding the Fourth Proportional to 13,538.49, 20,308.26 and 4,177.67

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Solution

The fourth proportional to 13,538.49, 20,308.26 and 4,177.67 is: 6,266.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.49 : 20,308.26 = 4,177.67 : x
  2. Step 2: Convert to fraction form
    13,538.49/20,308.26 = 4,177.67/x
  3. Step 3: Cross multiply
    13,538.49x = 20,308.26 × 4,177.67
  4. Step 4: Simplify right side
    13,538.49x = 84,841,208.55
  5. Step 5: Solve for x
    x = 84,841,208.55/13,538.49
  6. Step 6: Final answer
    x = 6,266.67

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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.