Home / 18,620.16-25,696.64-10,236.96

Finding the Fourth Proportional to 18,620.16, 25,696.64 and 10,236.96

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Solution

The fourth proportional to 18,620.16, 25,696.64 and 10,236.96 is: 14,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.16 : 25,696.64 = 10,236.96 : x
  2. Step 2: Convert to fraction form
    18,620.16/25,696.64 = 10,236.96/x
  3. Step 3: Cross multiply
    18,620.16x = 25,696.64 × 10,236.96
  4. Step 4: Simplify right side
    18,620.16x = 263,055,475.81
  5. Step 5: Solve for x
    x = 263,055,475.81/18,620.16
  6. Step 6: Final answer
    x = 14,127.46

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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.