Home / 9,942.40-14,913.60-8,828.80

Finding the Fourth Proportional to 9,942.40, 14,913.60 and 8,828.80

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Solution

The fourth proportional to 9,942.40, 14,913.60 and 8,828.80 is: 13,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,942.40 : 14,913.60 = 8,828.80 : x
  2. Step 2: Convert to fraction form
    9,942.40/14,913.60 = 8,828.80/x
  3. Step 3: Cross multiply
    9,942.40x = 14,913.60 × 8,828.80
  4. Step 4: Simplify right side
    9,942.40x = 131,669,191.68
  5. Step 5: Solve for x
    x = 131,669,191.68/9,942.40
  6. Step 6: Final answer
    x = 13,243.20

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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.