Home / 14,001.69-21,003.75-5,119.46

Finding the Fourth Proportional to 14,001.69, 21,003.75 and 5,119.46

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Solution

The fourth proportional to 14,001.69, 21,003.75 and 5,119.46 is: 7,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.69 : 21,003.75 = 5,119.46 : x
  2. Step 2: Convert to fraction form
    14,001.69/21,003.75 = 5,119.46/x
  3. Step 3: Cross multiply
    14,001.69x = 21,003.75 × 5,119.46
  4. Step 4: Simplify right side
    14,001.69x = 107,527,752.96
  5. Step 5: Solve for x
    x = 107,527,752.96/14,001.69
  6. Step 6: Final answer
    x = 7,679.63

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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.