Home / 19,776.63-29,664.90-4,986.71

Finding the Fourth Proportional to 19,776.63, 29,664.90 and 4,986.71

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Solution

The fourth proportional to 19,776.63, 29,664.90 and 4,986.71 is: 7,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.63 : 29,664.90 = 4,986.71 : x
  2. Step 2: Convert to fraction form
    19,776.63/29,664.90 = 4,986.71/x
  3. Step 3: Cross multiply
    19,776.63x = 29,664.90 × 4,986.71
  4. Step 4: Simplify right side
    19,776.63x = 147,930,105.15
  5. Step 5: Solve for x
    x = 147,930,105.15/19,776.63
  6. Step 6: Final answer
    x = 7,480.05

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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.