Home / 14,214.48-21,321.76-4,978.32

Finding the Fourth Proportional to 14,214.48, 21,321.76 and 4,978.32

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Solution

The fourth proportional to 14,214.48, 21,321.76 and 4,978.32 is: 7,467.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,214.48 : 21,321.76 = 4,978.32 : x
  2. Step 2: Convert to fraction form
    14,214.48/21,321.76 = 4,978.32/x
  3. Step 3: Cross multiply
    14,214.48x = 21,321.76 × 4,978.32
  4. Step 4: Simplify right side
    14,214.48x = 106,146,544.24
  5. Step 5: Solve for x
    x = 106,146,544.24/14,214.48
  6. Step 6: Final answer
    x = 7,467.49

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Similar ratio
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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.