Home / 9,678.20-14,516.46-6,855.36

Finding the Fourth Proportional to 9,678.20, 14,516.46 and 6,855.36

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Solution

The fourth proportional to 9,678.20, 14,516.46 and 6,855.36 is: 10,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.20 : 14,516.46 = 6,855.36 : x
  2. Step 2: Convert to fraction form
    9,678.20/14,516.46 = 6,855.36/x
  3. Step 3: Cross multiply
    9,678.20x = 14,516.46 × 6,855.36
  4. Step 4: Simplify right side
    9,678.20x = 99,515,559.23
  5. Step 5: Solve for x
    x = 99,515,559.23/9,678.20
  6. Step 6: Final answer
    x = 10,282.45

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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.