Home / 13,458.26-20,184.28-5,135.24

Finding the Fourth Proportional to 13,458.26, 20,184.28 and 5,135.24

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Solution

The fourth proportional to 13,458.26, 20,184.28 and 5,135.24 is: 7,701.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.26 : 20,184.28 = 5,135.24 : x
  2. Step 2: Convert to fraction form
    13,458.26/20,184.28 = 5,135.24/x
  3. Step 3: Cross multiply
    13,458.26x = 20,184.28 × 5,135.24
  4. Step 4: Simplify right side
    13,458.26x = 103,651,122.03
  5. Step 5: Solve for x
    x = 103,651,122.03/13,458.26
  6. Step 6: Final answer
    x = 7,701.67

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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.