Home / 19,485.16-26,889.69-11,102.20

Finding the Fourth Proportional to 19,485.16, 26,889.69 and 11,102.20

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Solution

The fourth proportional to 19,485.16, 26,889.69 and 11,102.20 is: 15,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.16 : 26,889.69 = 11,102.20 : x
  2. Step 2: Convert to fraction form
    19,485.16/26,889.69 = 11,102.20/x
  3. Step 3: Cross multiply
    19,485.16x = 26,889.69 × 11,102.20
  4. Step 4: Simplify right side
    19,485.16x = 298,534,716.32
  5. Step 5: Solve for x
    x = 298,534,716.32/19,485.16
  6. Step 6: Final answer
    x = 15,321.13

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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.