Home / 13,015.20-19,522.35-3,655.20

Finding the Fourth Proportional to 13,015.20, 19,522.35 and 3,655.20

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Solution

The fourth proportional to 13,015.20, 19,522.35 and 3,655.20 is: 5,482.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.20 : 19,522.35 = 3,655.20 : x
  2. Step 2: Convert to fraction form
    13,015.20/19,522.35 = 3,655.20/x
  3. Step 3: Cross multiply
    13,015.20x = 19,522.35 × 3,655.20
  4. Step 4: Simplify right side
    13,015.20x = 71,358,093.72
  5. Step 5: Solve for x
    x = 71,358,093.72/13,015.20
  6. Step 6: Final answer
    x = 5,482.67

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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.