Home / 9,769.80-14,649.30-4,222.20

Finding the Fourth Proportional to 9,769.80, 14,649.30 and 4,222.20

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Solution

The fourth proportional to 9,769.80, 14,649.30 and 4,222.20 is: 6,330.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,769.80 : 14,649.30 = 4,222.20 : x
  2. Step 2: Convert to fraction form
    9,769.80/14,649.30 = 4,222.20/x
  3. Step 3: Cross multiply
    9,769.80x = 14,649.30 × 4,222.20
  4. Step 4: Simplify right side
    9,769.80x = 61,852,274.46
  5. Step 5: Solve for x
    x = 61,852,274.46/9,769.80
  6. Step 6: Final answer
    x = 6,330.97

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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.