Home / 9,678.14-14,517.50-3,438.05

Finding the Fourth Proportional to 9,678.14, 14,517.50 and 3,438.05

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Solution

The fourth proportional to 9,678.14, 14,517.50 and 3,438.05 is: 5,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.14 : 14,517.50 = 3,438.05 : x
  2. Step 2: Convert to fraction form
    9,678.14/14,517.50 = 3,438.05/x
  3. Step 3: Cross multiply
    9,678.14x = 14,517.50 × 3,438.05
  4. Step 4: Simplify right side
    9,678.14x = 49,911,801.10
  5. Step 5: Solve for x
    x = 49,911,801.10/9,678.14
  6. Step 6: Final answer
    x = 5,157.17

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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.