Home / 11,504.24-15,880.50-7,729.62

Finding the Fourth Proportional to 11,504.24, 15,880.50 and 7,729.62

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Solution

The fourth proportional to 11,504.24, 15,880.50 and 7,729.62 is: 10,670.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,504.24 : 15,880.50 = 7,729.62 : x
  2. Step 2: Convert to fraction form
    11,504.24/15,880.50 = 7,729.62/x
  3. Step 3: Cross multiply
    11,504.24x = 15,880.50 × 7,729.62
  4. Step 4: Simplify right side
    11,504.24x = 122,750,230.41
  5. Step 5: Solve for x
    x = 122,750,230.41/11,504.24
  6. Step 6: Final answer
    x = 10,670.00

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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.