Home / 19,078.34-28,613.35-9,708.42

Finding the Fourth Proportional to 19,078.34, 28,613.35 and 9,708.42

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Solution

The fourth proportional to 19,078.34, 28,613.35 and 9,708.42 is: 14,560.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.34 : 28,613.35 = 9,708.42 : x
  2. Step 2: Convert to fraction form
    19,078.34/28,613.35 = 9,708.42/x
  3. Step 3: Cross multiply
    19,078.34x = 28,613.35 × 9,708.42
  4. Step 4: Simplify right side
    19,078.34x = 277,790,419.41
  5. Step 5: Solve for x
    x = 277,790,419.41/19,078.34
  6. Step 6: Final answer
    x = 14,560.51

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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.