Home / 18,898.16-28,308.32-11,088.12

Finding the Fourth Proportional to 18,898.16, 28,308.32 and 11,088.12

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Solution

The fourth proportional to 18,898.16, 28,308.32 and 11,088.12 is: 16,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.16 : 28,308.32 = 11,088.12 : x
  2. Step 2: Convert to fraction form
    18,898.16/28,308.32 = 11,088.12/x
  3. Step 3: Cross multiply
    18,898.16x = 28,308.32 × 11,088.12
  4. Step 4: Simplify right side
    18,898.16x = 313,886,049.16
  5. Step 5: Solve for x
    x = 313,886,049.16/18,898.16
  6. Step 6: Final answer
    x = 16,609.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.