Home / 9,947.80-14,897.40-4,747.60

Finding the Fourth Proportional to 9,947.80, 14,897.40 and 4,747.60

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Solution

The fourth proportional to 9,947.80, 14,897.40 and 4,747.60 is: 7,109.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.80 : 14,897.40 = 4,747.60 : x
  2. Step 2: Convert to fraction form
    9,947.80/14,897.40 = 4,747.60/x
  3. Step 3: Cross multiply
    9,947.80x = 14,897.40 × 4,747.60
  4. Step 4: Simplify right side
    9,947.80x = 70,726,896.24
  5. Step 5: Solve for x
    x = 70,726,896.24/9,947.80
  6. Step 6: Final answer
    x = 7,109.80

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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.