Home / 14,008.74-21,013.65-3,620.76

Finding the Fourth Proportional to 14,008.74, 21,013.65 and 3,620.76

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Solution

The fourth proportional to 14,008.74, 21,013.65 and 3,620.76 is: 5,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.74 : 21,013.65 = 3,620.76 : x
  2. Step 2: Convert to fraction form
    14,008.74/21,013.65 = 3,620.76/x
  3. Step 3: Cross multiply
    14,008.74x = 21,013.65 × 3,620.76
  4. Step 4: Simplify right side
    14,008.74x = 76,085,383.37
  5. Step 5: Solve for x
    x = 76,085,383.37/14,008.74
  6. Step 6: Final answer
    x = 5,431.28

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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.