Home / 14,746.85-20,350.69-8,778.46

Finding the Fourth Proportional to 14,746.85, 20,350.69 and 8,778.46

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Solution

The fourth proportional to 14,746.85, 20,350.69 and 8,778.46 is: 12,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,746.85 : 20,350.69 = 8,778.46 : x
  2. Step 2: Convert to fraction form
    14,746.85/20,350.69 = 8,778.46/x
  3. Step 3: Cross multiply
    14,746.85x = 20,350.69 × 8,778.46
  4. Step 4: Simplify right side
    14,746.85x = 178,647,787.22
  5. Step 5: Solve for x
    x = 178,647,787.22/14,746.85
  6. Step 6: Final answer
    x = 12,114.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.