Home / 11,170.08-15,404.43-7,590.40

Finding the Fourth Proportional to 11,170.08, 15,404.43 and 7,590.40

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Solution

The fourth proportional to 11,170.08, 15,404.43 and 7,590.40 is: 10,467.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,170.08 : 15,404.43 = 7,590.40 : x
  2. Step 2: Convert to fraction form
    11,170.08/15,404.43 = 7,590.40/x
  3. Step 3: Cross multiply
    11,170.08x = 15,404.43 × 7,590.40
  4. Step 4: Simplify right side
    11,170.08x = 116,925,785.47
  5. Step 5: Solve for x
    x = 116,925,785.47/11,170.08
  6. Step 6: Final answer
    x = 10,467.77

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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.