Home / 18,365.81-25,344.72-10,409.54

Finding the Fourth Proportional to 18,365.81, 25,344.72 and 10,409.54

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Solution

The fourth proportional to 18,365.81, 25,344.72 and 10,409.54 is: 14,365.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.81 : 25,344.72 = 10,409.54 : x
  2. Step 2: Convert to fraction form
    18,365.81/25,344.72 = 10,409.54/x
  3. Step 3: Cross multiply
    18,365.81x = 25,344.72 × 10,409.54
  4. Step 4: Simplify right side
    18,365.81x = 263,826,876.63
  5. Step 5: Solve for x
    x = 263,826,876.63/18,365.81
  6. Step 6: Final answer
    x = 14,365.11

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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.