Home / 9,792.24-13,509.68-6,436.80

Finding the Fourth Proportional to 9,792.24, 13,509.68 and 6,436.80

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Solution

The fourth proportional to 9,792.24, 13,509.68 and 6,436.80 is: 8,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792.24 : 13,509.68 = 6,436.80 : x
  2. Step 2: Convert to fraction form
    9,792.24/13,509.68 = 6,436.80/x
  3. Step 3: Cross multiply
    9,792.24x = 13,509.68 × 6,436.80
  4. Step 4: Simplify right side
    9,792.24x = 86,959,108.22
  5. Step 5: Solve for x
    x = 86,959,108.22/9,792.24
  6. Step 6: Final answer
    x = 8,880.41

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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.