Home / 18,362.06-25,338.21-10,405.53

Finding the Fourth Proportional to 18,362.06, 25,338.21 and 10,405.53

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Solution

The fourth proportional to 18,362.06, 25,338.21 and 10,405.53 is: 14,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.06 : 25,338.21 = 10,405.53 : x
  2. Step 2: Convert to fraction form
    18,362.06/25,338.21 = 10,405.53/x
  3. Step 3: Cross multiply
    18,362.06x = 25,338.21 × 10,405.53
  4. Step 4: Simplify right side
    18,362.06x = 263,657,504.30
  5. Step 5: Solve for x
    x = 263,657,504.30/18,362.06
  6. Step 6: Final answer
    x = 14,358.82

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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.