Home / 14,412.60-21,640.77-9,180.81

Finding the Fourth Proportional to 14,412.60, 21,640.77 and 9,180.81

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Solution

The fourth proportional to 14,412.60, 21,640.77 and 9,180.81 is: 13,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.60 : 21,640.77 = 9,180.81 : x
  2. Step 2: Convert to fraction form
    14,412.60/21,640.77 = 9,180.81/x
  3. Step 3: Cross multiply
    14,412.60x = 21,640.77 × 9,180.81
  4. Step 4: Simplify right side
    14,412.60x = 198,679,797.62
  5. Step 5: Solve for x
    x = 198,679,797.62/14,412.60
  6. Step 6: Final answer
    x = 13,785.15

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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.