Home / 13,143.90-19,699.43-6,571.92

Finding the Fourth Proportional to 13,143.90, 19,699.43 and 6,571.92

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Solution

The fourth proportional to 13,143.90, 19,699.43 and 6,571.92 is: 9,849.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.90 : 19,699.43 = 6,571.92 : x
  2. Step 2: Convert to fraction form
    13,143.90/19,699.43 = 6,571.92/x
  3. Step 3: Cross multiply
    13,143.90x = 19,699.43 × 6,571.92
  4. Step 4: Simplify right side
    13,143.90x = 129,463,045.15
  5. Step 5: Solve for x
    x = 129,463,045.15/13,143.90
  6. Step 6: Final answer
    x = 9,849.67

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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.