Home / 18,485.52-25,518.72-11,416.08

Finding the Fourth Proportional to 18,485.52, 25,518.72 and 11,416.08

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Solution

The fourth proportional to 18,485.52, 25,518.72 and 11,416.08 is: 15,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.52 : 25,518.72 = 11,416.08 : x
  2. Step 2: Convert to fraction form
    18,485.52/25,518.72 = 11,416.08/x
  3. Step 3: Cross multiply
    18,485.52x = 25,518.72 × 11,416.08
  4. Step 4: Simplify right side
    18,485.52x = 291,323,749.02
  5. Step 5: Solve for x
    x = 291,323,749.02/18,485.52
  6. Step 6: Final answer
    x = 15,759.56

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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.