Home / 9,942.40-14,913.60-4,758.40

Finding the Fourth Proportional to 9,942.40, 14,913.60 and 4,758.40

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Solution

The fourth proportional to 9,942.40, 14,913.60 and 4,758.40 is: 7,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,942.40 : 14,913.60 = 4,758.40 : x
  2. Step 2: Convert to fraction form
    9,942.40/14,913.60 = 4,758.40/x
  3. Step 3: Cross multiply
    9,942.40x = 14,913.60 × 4,758.40
  4. Step 4: Simplify right side
    9,942.40x = 70,964,874.24
  5. Step 5: Solve for x
    x = 70,964,874.24/9,942.40
  6. Step 6: Final answer
    x = 7,137.60

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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.