Home / 14,165.56-21,231.88-7,928.36

Finding the Fourth Proportional to 14,165.56, 21,231.88 and 7,928.36

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Solution

The fourth proportional to 14,165.56, 21,231.88 and 7,928.36 is: 11,883.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.56 : 21,231.88 = 7,928.36 : x
  2. Step 2: Convert to fraction form
    14,165.56/21,231.88 = 7,928.36/x
  3. Step 3: Cross multiply
    14,165.56x = 21,231.88 × 7,928.36
  4. Step 4: Simplify right side
    14,165.56x = 168,333,988.12
  5. Step 5: Solve for x
    x = 168,333,988.12/14,165.56
  6. Step 6: Final answer
    x = 11,883.33

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1.5x scale

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.