Home / 18,445.59-25,458.71-11,276.69

Finding the Fourth Proportional to 18,445.59, 25,458.71 and 11,276.69

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Solution

The fourth proportional to 18,445.59, 25,458.71 and 11,276.69 is: 15,564.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.59 : 25,458.71 = 11,276.69 : x
  2. Step 2: Convert to fraction form
    18,445.59/25,458.71 = 11,276.69/x
  3. Step 3: Cross multiply
    18,445.59x = 25,458.71 × 11,276.69
  4. Step 4: Simplify right side
    18,445.59x = 287,089,796.79
  5. Step 5: Solve for x
    x = 287,089,796.79/18,445.59
  6. Step 6: Final answer
    x = 15,564.14

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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.