Home / 10,615.62-15,921.33-3,218.34

Finding the Fourth Proportional to 10,615.62, 15,921.33 and 3,218.34

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Solution

The fourth proportional to 10,615.62, 15,921.33 and 3,218.34 is: 4,826.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.62 : 15,921.33 = 3,218.34 : x
  2. Step 2: Convert to fraction form
    10,615.62/15,921.33 = 3,218.34/x
  3. Step 3: Cross multiply
    10,615.62x = 15,921.33 × 3,218.34
  4. Step 4: Simplify right side
    10,615.62x = 51,240,253.19
  5. Step 5: Solve for x
    x = 51,240,253.19/10,615.62
  6. Step 6: Final answer
    x = 4,826.87

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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.