Home / 9,821.60-14,735.92-4,890.80

Finding the Fourth Proportional to 9,821.60, 14,735.92 and 4,890.80

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Solution

The fourth proportional to 9,821.60, 14,735.92 and 4,890.80 is: 7,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821.60 : 14,735.92 = 4,890.80 : x
  2. Step 2: Convert to fraction form
    9,821.60/14,735.92 = 4,890.80/x
  3. Step 3: Cross multiply
    9,821.60x = 14,735.92 × 4,890.80
  4. Step 4: Simplify right side
    9,821.60x = 72,070,437.54
  5. Step 5: Solve for x
    x = 72,070,437.54/9,821.60
  6. Step 6: Final answer
    x = 7,337.95

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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.