Home / 14,284.48-21,429.24-5,518.68

Finding the Fourth Proportional to 14,284.48, 21,429.24 and 5,518.68

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Solution

The fourth proportional to 14,284.48, 21,429.24 and 5,518.68 is: 8,278.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,284.48 : 21,429.24 = 5,518.68 : x
  2. Step 2: Convert to fraction form
    14,284.48/21,429.24 = 5,518.68/x
  3. Step 3: Cross multiply
    14,284.48x = 21,429.24 × 5,518.68
  4. Step 4: Simplify right side
    14,284.48x = 118,261,118.20
  5. Step 5: Solve for x
    x = 118,261,118.20/14,284.48
  6. Step 6: Final answer
    x = 8,278.99

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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.