Home / 13,643.79-20,466.90-5,850.78

Finding the Fourth Proportional to 13,643.79, 20,466.90 and 5,850.78

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Solution

The fourth proportional to 13,643.79, 20,466.90 and 5,850.78 is: 8,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.79 : 20,466.90 = 5,850.78 : x
  2. Step 2: Convert to fraction form
    13,643.79/20,466.90 = 5,850.78/x
  3. Step 3: Cross multiply
    13,643.79x = 20,466.90 × 5,850.78
  4. Step 4: Simplify right side
    13,643.79x = 119,747,329.18
  5. Step 5: Solve for x
    x = 119,747,329.18/13,643.79
  6. Step 6: Final answer
    x = 8,776.69

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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.