Home / 9,905.40-14,868.90-6,211.80

Finding the Fourth Proportional to 9,905.40, 14,868.90 and 6,211.80

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Solution

The fourth proportional to 9,905.40, 14,868.90 and 6,211.80 is: 9,324.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.40 : 14,868.90 = 6,211.80 : x
  2. Step 2: Convert to fraction form
    9,905.40/14,868.90 = 6,211.80/x
  3. Step 3: Cross multiply
    9,905.40x = 14,868.90 × 6,211.80
  4. Step 4: Simplify right side
    9,905.40x = 92,362,633.02
  5. Step 5: Solve for x
    x = 92,362,633.02/9,905.40
  6. Step 6: Final answer
    x = 9,324.47

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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.