Home / 9,930.60-14,882.40-6,409.80

Finding the Fourth Proportional to 9,930.60, 14,882.40 and 6,409.80

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Solution

The fourth proportional to 9,930.60, 14,882.40 and 6,409.80 is: 9,605.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.60 : 14,882.40 = 6,409.80 : x
  2. Step 2: Convert to fraction form
    9,930.60/14,882.40 = 6,409.80/x
  3. Step 3: Cross multiply
    9,930.60x = 14,882.40 × 6,409.80
  4. Step 4: Simplify right side
    9,930.60x = 95,393,207.52
  5. Step 5: Solve for x
    x = 95,393,207.52/9,930.60
  6. Step 6: Final answer
    x = 9,605.99

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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.