Home / 12,699.24-19,051.90-5,299.60

Finding the Fourth Proportional to 12,699.24, 19,051.90 and 5,299.60

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Solution

The fourth proportional to 12,699.24, 19,051.90 and 5,299.60 is: 7,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.24 : 19,051.90 = 5,299.60 : x
  2. Step 2: Convert to fraction form
    12,699.24/19,051.90 = 5,299.60/x
  3. Step 3: Cross multiply
    12,699.24x = 19,051.90 × 5,299.60
  4. Step 4: Simplify right side
    12,699.24x = 100,967,449.24
  5. Step 5: Solve for x
    x = 100,967,449.24/12,699.24
  6. Step 6: Final answer
    x = 7,950.67

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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.