Home / 9,982.40-14,955.60-4,776.80

Finding the Fourth Proportional to 9,982.40, 14,955.60 and 4,776.80

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Solution

The fourth proportional to 9,982.40, 14,955.60 and 4,776.80 is: 7,156.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.40 : 14,955.60 = 4,776.80 : x
  2. Step 2: Convert to fraction form
    9,982.40/14,955.60 = 4,776.80/x
  3. Step 3: Cross multiply
    9,982.40x = 14,955.60 × 4,776.80
  4. Step 4: Simplify right side
    9,982.40x = 71,439,910.08
  5. Step 5: Solve for x
    x = 71,439,910.08/9,982.40
  6. Step 6: Final answer
    x = 7,156.59

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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.