Home / 14,080.64-21,128.24-6,188.70

Finding the Fourth Proportional to 14,080.64, 21,128.24 and 6,188.70

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Solution

The fourth proportional to 14,080.64, 21,128.24 and 6,188.70 is: 9,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.64 : 21,128.24 = 6,188.70 : x
  2. Step 2: Convert to fraction form
    14,080.64/21,128.24 = 6,188.70/x
  3. Step 3: Cross multiply
    14,080.64x = 21,128.24 × 6,188.70
  4. Step 4: Simplify right side
    14,080.64x = 130,756,299.89
  5. Step 5: Solve for x
    x = 130,756,299.89/14,080.64
  6. Step 6: Final answer
    x = 9,286.25

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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.