Home / 11,119.68-15,345-6,083.88

Finding the Fourth Proportional to 11,119.68, 15,345 and 6,083.88

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Solution

The fourth proportional to 11,119.68, 15,345 and 6,083.88 is: 8,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.68 : 15,345 = 6,083.88 : x
  2. Step 2: Convert to fraction form
    11,119.68/15,345 = 6,083.88/x
  3. Step 3: Cross multiply
    11,119.68x = 15,345 × 6,083.88
  4. Step 4: Simplify right side
    11,119.68x = 93,357,138.60
  5. Step 5: Solve for x
    x = 93,357,138.60/11,119.68
  6. Step 6: Final answer
    x = 8,395.67

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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.