Home / 7,346.36-10,999.88-4,221.68

Finding the Fourth Proportional to 7,346.36, 10,999.88 and 4,221.68

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Solution

The fourth proportional to 7,346.36, 10,999.88 and 4,221.68 is: 6,321.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346.36 : 10,999.88 = 4,221.68 : x
  2. Step 2: Convert to fraction form
    7,346.36/10,999.88 = 4,221.68/x
  3. Step 3: Cross multiply
    7,346.36x = 10,999.88 × 4,221.68
  4. Step 4: Simplify right side
    7,346.36x = 46,437,973.40
  5. Step 5: Solve for x
    x = 46,437,973.40/7,346.36
  6. Step 6: Final answer
    x = 6,321.22

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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.