Home / 19,085.40-26,350.83-11,918.12

Finding the Fourth Proportional to 19,085.40, 26,350.83 and 11,918.12

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Solution

The fourth proportional to 19,085.40, 26,350.83 and 11,918.12 is: 16,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,085.40 : 26,350.83 = 11,918.12 : x
  2. Step 2: Convert to fraction form
    19,085.40/26,350.83 = 11,918.12/x
  3. Step 3: Cross multiply
    19,085.40x = 26,350.83 × 11,918.12
  4. Step 4: Simplify right side
    19,085.40x = 314,052,222.29
  5. Step 5: Solve for x
    x = 314,052,222.29/19,085.40
  6. Step 6: Final answer
    x = 16,455.10

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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.