Home / 11,209.08-15,469.74-7,018.68

Finding the Fourth Proportional to 11,209.08, 15,469.74 and 7,018.68

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Solution

The fourth proportional to 11,209.08, 15,469.74 and 7,018.68 is: 9,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.08 : 15,469.74 = 7,018.68 : x
  2. Step 2: Convert to fraction form
    11,209.08/15,469.74 = 7,018.68/x
  3. Step 3: Cross multiply
    11,209.08x = 15,469.74 × 7,018.68
  4. Step 4: Simplify right side
    11,209.08x = 108,577,154.74
  5. Step 5: Solve for x
    x = 108,577,154.74/11,209.08
  6. Step 6: Final answer
    x = 9,686.54

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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.