Home / 13,451.24-20,176.85-4,680

Finding the Fourth Proportional to 13,451.24, 20,176.85 and 4,680

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Solution

The fourth proportional to 13,451.24, 20,176.85 and 4,680 is: 7,020.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.24 : 20,176.85 = 4,680 : x
  2. Step 2: Convert to fraction form
    13,451.24/20,176.85 = 4,680/x
  3. Step 3: Cross multiply
    13,451.24x = 20,176.85 × 4,680
  4. Step 4: Simplify right side
    13,451.24x = 94,427,669.70
  5. Step 5: Solve for x
    x = 94,427,669.70/13,451.24
  6. Step 6: Final answer
    x = 7,020.00

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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.