Home / 13,143.93-19,699.48-6,571.99

Finding the Fourth Proportional to 13,143.93, 19,699.48 and 6,571.99

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Solution

The fourth proportional to 13,143.93, 19,699.48 and 6,571.99 is: 9,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.93 : 19,699.48 = 6,571.99 : x
  2. Step 2: Convert to fraction form
    13,143.93/19,699.48 = 6,571.99/x
  3. Step 3: Cross multiply
    13,143.93x = 19,699.48 × 6,571.99
  4. Step 4: Simplify right side
    13,143.93x = 129,464,818.40
  5. Step 5: Solve for x
    x = 129,464,818.40/13,143.93
  6. Step 6: Final answer
    x = 9,849.78

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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.