Home / 6,211.47-8,562.10-4,218.54

Finding the Fourth Proportional to 6,211.47, 8,562.10 and 4,218.54

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Solution

The fourth proportional to 6,211.47, 8,562.10 and 4,218.54 is: 5,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.47 : 8,562.10 = 4,218.54 : x
  2. Step 2: Convert to fraction form
    6,211.47/8,562.10 = 4,218.54/x
  3. Step 3: Cross multiply
    6,211.47x = 8,562.10 × 4,218.54
  4. Step 4: Simplify right side
    6,211.47x = 36,119,561.33
  5. Step 5: Solve for x
    x = 36,119,561.33/6,211.47
  6. Step 6: Final answer
    x = 5,814.98

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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.