Home / 18,503.52-25,533.92-11,430.56

Finding the Fourth Proportional to 18,503.52, 25,533.92 and 11,430.56

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Solution

The fourth proportional to 18,503.52, 25,533.92 and 11,430.56 is: 15,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.52 : 25,533.92 = 11,430.56 : x
  2. Step 2: Convert to fraction form
    18,503.52/25,533.92 = 11,430.56/x
  3. Step 3: Cross multiply
    18,503.52x = 25,533.92 × 11,430.56
  4. Step 4: Simplify right side
    18,503.52x = 291,867,004.60
  5. Step 5: Solve for x
    x = 291,867,004.60/18,503.52
  6. Step 6: Final answer
    x = 15,773.59

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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.