Home / 10,614.51-15,921.81-3,219.05

Finding the Fourth Proportional to 10,614.51, 15,921.81 and 3,219.05

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Solution

The fourth proportional to 10,614.51, 15,921.81 and 3,219.05 is: 4,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,614.51 : 15,921.81 = 3,219.05 : x
  2. Step 2: Convert to fraction form
    10,614.51/15,921.81 = 3,219.05/x
  3. Step 3: Cross multiply
    10,614.51x = 15,921.81 × 3,219.05
  4. Step 4: Simplify right side
    10,614.51x = 51,253,022.87
  5. Step 5: Solve for x
    x = 51,253,022.87/10,614.51
  6. Step 6: Final answer
    x = 4,828.58

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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.