Home / 13,677.69-20,513.59-4,318.45

Finding the Fourth Proportional to 13,677.69, 20,513.59 and 4,318.45

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Solution

The fourth proportional to 13,677.69, 20,513.59 and 4,318.45 is: 6,476.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.69 : 20,513.59 = 4,318.45 : x
  2. Step 2: Convert to fraction form
    13,677.69/20,513.59 = 4,318.45/x
  3. Step 3: Cross multiply
    13,677.69x = 20,513.59 × 4,318.45
  4. Step 4: Simplify right side
    13,677.69x = 88,586,912.74
  5. Step 5: Solve for x
    x = 88,586,912.74/13,677.69
  6. Step 6: Final answer
    x = 6,476.75

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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.