Home / 12,211.18-18,319.02-4,315.96

Finding the Fourth Proportional to 12,211.18, 18,319.02 and 4,315.96

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Solution

The fourth proportional to 12,211.18, 18,319.02 and 4,315.96 is: 6,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.18 : 18,319.02 = 4,315.96 : x
  2. Step 2: Convert to fraction form
    12,211.18/18,319.02 = 4,315.96/x
  3. Step 3: Cross multiply
    12,211.18x = 18,319.02 × 4,315.96
  4. Step 4: Simplify right side
    12,211.18x = 79,064,157.56
  5. Step 5: Solve for x
    x = 79,064,157.56/12,211.18
  6. Step 6: Final answer
    x = 6,474.74

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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.