Home / 19,135.74-28,708.83-6,656.48

Finding the Fourth Proportional to 19,135.74, 28,708.83 and 6,656.48

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Solution

The fourth proportional to 19,135.74, 28,708.83 and 6,656.48 is: 9,986.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.74 : 28,708.83 = 6,656.48 : x
  2. Step 2: Convert to fraction form
    19,135.74/28,708.83 = 6,656.48/x
  3. Step 3: Cross multiply
    19,135.74x = 28,708.83 × 6,656.48
  4. Step 4: Simplify right side
    19,135.74x = 191,099,716.83
  5. Step 5: Solve for x
    x = 191,099,716.83/19,135.74
  6. Step 6: Final answer
    x = 9,986.53

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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.