Home / 13,015.31-19,522.79-3,154.67

Finding the Fourth Proportional to 13,015.31, 19,522.79 and 3,154.67

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Solution

The fourth proportional to 13,015.31, 19,522.79 and 3,154.67 is: 4,731.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.31 : 19,522.79 = 3,154.67 : x
  2. Step 2: Convert to fraction form
    13,015.31/19,522.79 = 3,154.67/x
  3. Step 3: Cross multiply
    13,015.31x = 19,522.79 × 3,154.67
  4. Step 4: Simplify right side
    13,015.31x = 61,588,000.85
  5. Step 5: Solve for x
    x = 61,588,000.85/13,015.31
  6. Step 6: Final answer
    x = 4,731.97

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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.