Home / 18,918.51-26,107.29-10,535.01

Finding the Fourth Proportional to 18,918.51, 26,107.29 and 10,535.01

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Solution

The fourth proportional to 18,918.51, 26,107.29 and 10,535.01 is: 14,538.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918.51 : 26,107.29 = 10,535.01 : x
  2. Step 2: Convert to fraction form
    18,918.51/26,107.29 = 10,535.01/x
  3. Step 3: Cross multiply
    18,918.51x = 26,107.29 × 10,535.01
  4. Step 4: Simplify right side
    18,918.51x = 275,040,561.22
  5. Step 5: Solve for x
    x = 275,040,561.22/18,918.51
  6. Step 6: Final answer
    x = 14,538.17

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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.