Home / 13,076.19-19,619.74-5,686.86

Finding the Fourth Proportional to 13,076.19, 19,619.74 and 5,686.86

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Solution

The fourth proportional to 13,076.19, 19,619.74 and 5,686.86 is: 8,532.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.19 : 19,619.74 = 5,686.86 : x
  2. Step 2: Convert to fraction form
    13,076.19/19,619.74 = 5,686.86/x
  3. Step 3: Cross multiply
    13,076.19x = 19,619.74 × 5,686.86
  4. Step 4: Simplify right side
    13,076.19x = 111,574,714.62
  5. Step 5: Solve for x
    x = 111,574,714.62/13,076.19
  6. Step 6: Final answer
    x = 8,532.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.