Home / 14,054.40-21,081.60-5,291.28

Finding the Fourth Proportional to 14,054.40, 21,081.60 and 5,291.28

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Solution

The fourth proportional to 14,054.40, 21,081.60 and 5,291.28 is: 7,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,054.40 : 21,081.60 = 5,291.28 : x
  2. Step 2: Convert to fraction form
    14,054.40/21,081.60 = 5,291.28/x
  3. Step 3: Cross multiply
    14,054.40x = 21,081.60 × 5,291.28
  4. Step 4: Simplify right side
    14,054.40x = 111,548,648.45
  5. Step 5: Solve for x
    x = 111,548,648.45/14,054.40
  6. Step 6: Final answer
    x = 7,936.92

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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.