Home / 19,108.32-28,606.32-11,186.40

Finding the Fourth Proportional to 19,108.32, 28,606.32 and 11,186.40

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Solution

The fourth proportional to 19,108.32, 28,606.32 and 11,186.40 is: 16,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,108.32 : 28,606.32 = 11,186.40 : x
  2. Step 2: Convert to fraction form
    19,108.32/28,606.32 = 11,186.40/x
  3. Step 3: Cross multiply
    19,108.32x = 28,606.32 × 11,186.40
  4. Step 4: Simplify right side
    19,108.32x = 320,001,738.05
  5. Step 5: Solve for x
    x = 320,001,738.05/19,108.32
  6. Step 6: Final answer
    x = 16,746.72

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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.