Home / 14,079.60-21,216.24-11,668.68

Finding the Fourth Proportional to 14,079.60, 21,216.24 and 11,668.68

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Solution

The fourth proportional to 14,079.60, 21,216.24 and 11,668.68 is: 17,583.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.60 : 21,216.24 = 11,668.68 : x
  2. Step 2: Convert to fraction form
    14,079.60/21,216.24 = 11,668.68/x
  3. Step 3: Cross multiply
    14,079.60x = 21,216.24 × 11,668.68
  4. Step 4: Simplify right side
    14,079.60x = 247,565,515.36
  5. Step 5: Solve for x
    x = 247,565,515.36/14,079.60
  6. Step 6: Final answer
    x = 17,583.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.