Home / 16,518.08-22,800.16-11,148.32

Finding the Fourth Proportional to 16,518.08, 22,800.16 and 11,148.32

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Solution

The fourth proportional to 16,518.08, 22,800.16 and 11,148.32 is: 15,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,518.08 : 22,800.16 = 11,148.32 : x
  2. Step 2: Convert to fraction form
    16,518.08/22,800.16 = 11,148.32/x
  3. Step 3: Cross multiply
    16,518.08x = 22,800.16 × 11,148.32
  4. Step 4: Simplify right side
    16,518.08x = 254,183,479.73
  5. Step 5: Solve for x
    x = 254,183,479.73/16,518.08
  6. Step 6: Final answer
    x = 15,388.20

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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.