Home / 13,470.44-18,589.21-7,808.48

Finding the Fourth Proportional to 13,470.44, 18,589.21 and 7,808.48

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Solution

The fourth proportional to 13,470.44, 18,589.21 and 7,808.48 is: 10,775.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.44 : 18,589.21 = 7,808.48 : x
  2. Step 2: Convert to fraction form
    13,470.44/18,589.21 = 7,808.48/x
  3. Step 3: Cross multiply
    13,470.44x = 18,589.21 × 7,808.48
  4. Step 4: Simplify right side
    13,470.44x = 145,153,365.74
  5. Step 5: Solve for x
    x = 145,153,365.74/13,470.44
  6. Step 6: Final answer
    x = 10,775.69

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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.