Home / 8,140.37-12,211.45-2,592.42

Finding the Fourth Proportional to 8,140.37, 12,211.45 and 2,592.42

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Solution

The fourth proportional to 8,140.37, 12,211.45 and 2,592.42 is: 3,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.37 : 12,211.45 = 2,592.42 : x
  2. Step 2: Convert to fraction form
    8,140.37/12,211.45 = 2,592.42/x
  3. Step 3: Cross multiply
    8,140.37x = 12,211.45 × 2,592.42
  4. Step 4: Simplify right side
    8,140.37x = 31,657,207.21
  5. Step 5: Solve for x
    x = 31,657,207.21/8,140.37
  6. Step 6: Final answer
    x = 3,888.92

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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.