Home / 12,771.80-19,157.51-5,746.85

Finding the Fourth Proportional to 12,771.80, 19,157.51 and 5,746.85

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Solution

The fourth proportional to 12,771.80, 19,157.51 and 5,746.85 is: 8,620.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.80 : 19,157.51 = 5,746.85 : x
  2. Step 2: Convert to fraction form
    12,771.80/19,157.51 = 5,746.85/x
  3. Step 3: Cross multiply
    12,771.80x = 19,157.51 × 5,746.85
  4. Step 4: Simplify right side
    12,771.80x = 110,095,211.82
  5. Step 5: Solve for x
    x = 110,095,211.82/12,771.80
  6. Step 6: Final answer
    x = 8,620.18

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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.