Home / 12,730.10-19,087.48-5,708.85

Finding the Fourth Proportional to 12,730.10, 19,087.48 and 5,708.85

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Solution

The fourth proportional to 12,730.10, 19,087.48 and 5,708.85 is: 8,559.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.10 : 19,087.48 = 5,708.85 : x
  2. Step 2: Convert to fraction form
    12,730.10/19,087.48 = 5,708.85/x
  3. Step 3: Cross multiply
    12,730.10x = 19,087.48 × 5,708.85
  4. Step 4: Simplify right side
    12,730.10x = 108,967,464.76
  5. Step 5: Solve for x
    x = 108,967,464.76/12,730.10
  6. Step 6: Final answer
    x = 8,559.83

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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.