Home / 13,518.89-20,281.05-4,754.48

Finding the Fourth Proportional to 13,518.89, 20,281.05 and 4,754.48

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Solution

The fourth proportional to 13,518.89, 20,281.05 and 4,754.48 is: 7,132.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.89 : 20,281.05 = 4,754.48 : x
  2. Step 2: Convert to fraction form
    13,518.89/20,281.05 = 4,754.48/x
  3. Step 3: Cross multiply
    13,518.89x = 20,281.05 × 4,754.48
  4. Step 4: Simplify right side
    13,518.89x = 96,425,745.20
  5. Step 5: Solve for x
    x = 96,425,745.20/13,518.89
  6. Step 6: Final answer
    x = 7,132.67

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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.