Home / 7,013.28-9,676.98-4,218.96

Finding the Fourth Proportional to 7,013.28, 9,676.98 and 4,218.96

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Solution

The fourth proportional to 7,013.28, 9,676.98 and 4,218.96 is: 5,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.28 : 9,676.98 = 4,218.96 : x
  2. Step 2: Convert to fraction form
    7,013.28/9,676.98 = 4,218.96/x
  3. Step 3: Cross multiply
    7,013.28x = 9,676.98 × 4,218.96
  4. Step 4: Simplify right side
    7,013.28x = 40,826,791.54
  5. Step 5: Solve for x
    x = 40,826,791.54/7,013.28
  6. Step 6: Final answer
    x = 5,821.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.