Home / 18,535.68-25,581.84-11,819.16

Finding the Fourth Proportional to 18,535.68, 25,581.84 and 11,819.16

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Solution

The fourth proportional to 18,535.68, 25,581.84 and 11,819.16 is: 16,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.68 : 25,581.84 = 11,819.16 : x
  2. Step 2: Convert to fraction form
    18,535.68/25,581.84 = 11,819.16/x
  3. Step 3: Cross multiply
    18,535.68x = 25,581.84 × 11,819.16
  4. Step 4: Simplify right side
    18,535.68x = 302,355,860.05
  5. Step 5: Solve for x
    x = 302,355,860.05/18,535.68
  6. Step 6: Final answer
    x = 16,312.10

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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.