Home / 10,614.10-15,921.34-3,218.80

Finding the Fourth Proportional to 10,614.10, 15,921.34 and 3,218.80

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Solution

The fourth proportional to 10,614.10, 15,921.34 and 3,218.80 is: 4,828.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,614.10 : 15,921.34 = 3,218.80 : x
  2. Step 2: Convert to fraction form
    10,614.10/15,921.34 = 3,218.80/x
  3. Step 3: Cross multiply
    10,614.10x = 15,921.34 × 3,218.80
  4. Step 4: Simplify right side
    10,614.10x = 51,247,609.19
  5. Step 5: Solve for x
    x = 51,247,609.19/10,614.10
  6. Step 6: Final answer
    x = 4,828.26

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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.