Home / 19,559.16-26,986.80-11,603.28

Finding the Fourth Proportional to 19,559.16, 26,986.80 and 11,603.28

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Solution

The fourth proportional to 19,559.16, 26,986.80 and 11,603.28 is: 16,009.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,559.16 : 26,986.80 = 11,603.28 : x
  2. Step 2: Convert to fraction form
    19,559.16/26,986.80 = 11,603.28/x
  3. Step 3: Cross multiply
    19,559.16x = 26,986.80 × 11,603.28
  4. Step 4: Simplify right side
    19,559.16x = 313,135,396.70
  5. Step 5: Solve for x
    x = 313,135,396.70/19,559.16
  6. Step 6: Final answer
    x = 16,009.65

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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.