Home / 9,678.96-14,516.57-3,438.72

Finding the Fourth Proportional to 9,678.96, 14,516.57 and 3,438.72

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Solution

The fourth proportional to 9,678.96, 14,516.57 and 3,438.72 is: 5,157.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.96 : 14,516.57 = 3,438.72 : x
  2. Step 2: Convert to fraction form
    9,678.96/14,516.57 = 3,438.72/x
  3. Step 3: Cross multiply
    9,678.96x = 14,516.57 × 3,438.72
  4. Step 4: Simplify right side
    9,678.96x = 49,918,428.19
  5. Step 5: Solve for x
    x = 49,918,428.19/9,678.96
  6. Step 6: Final answer
    x = 5,157.42

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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.