Home / 18,986.86-26,204.88-10,603.36

Finding the Fourth Proportional to 18,986.86, 26,204.88 and 10,603.36

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Solution

The fourth proportional to 18,986.86, 26,204.88 and 10,603.36 is: 14,634.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.86 : 26,204.88 = 10,603.36 : x
  2. Step 2: Convert to fraction form
    18,986.86/26,204.88 = 10,603.36/x
  3. Step 3: Cross multiply
    18,986.86x = 26,204.88 × 10,603.36
  4. Step 4: Simplify right side
    18,986.86x = 277,859,776.40
  5. Step 5: Solve for x
    x = 277,859,776.40/18,986.86
  6. Step 6: Final answer
    x = 14,634.32

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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.