Home / 13,259.99-18,299.26-7,292.12

Finding the Fourth Proportional to 13,259.99, 18,299.26 and 7,292.12

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Solution

The fourth proportional to 13,259.99, 18,299.26 and 7,292.12 is: 10,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.99 : 18,299.26 = 7,292.12 : x
  2. Step 2: Convert to fraction form
    13,259.99/18,299.26 = 7,292.12/x
  3. Step 3: Cross multiply
    13,259.99x = 18,299.26 × 7,292.12
  4. Step 4: Simplify right side
    13,259.99x = 133,440,399.83
  5. Step 5: Solve for x
    x = 133,440,399.83/13,259.99
  6. Step 6: Final answer
    x = 10,063.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.