Home / 18,972.84-26,183.38-10,909.11

Finding the Fourth Proportional to 18,972.84, 26,183.38 and 10,909.11

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Solution

The fourth proportional to 18,972.84, 26,183.38 and 10,909.11 is: 15,055.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.84 : 26,183.38 = 10,909.11 : x
  2. Step 2: Convert to fraction form
    18,972.84/26,183.38 = 10,909.11/x
  3. Step 3: Cross multiply
    18,972.84x = 26,183.38 × 10,909.11
  4. Step 4: Simplify right side
    18,972.84x = 285,637,345.32
  5. Step 5: Solve for x
    x = 285,637,345.32/18,972.84
  6. Step 6: Final answer
    x = 15,055.07

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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.