Home / 19,103.60-28,613.85-11,685.62

Finding the Fourth Proportional to 19,103.60, 28,613.85 and 11,685.62

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Solution

The fourth proportional to 19,103.60, 28,613.85 and 11,685.62 is: 17,503.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.60 : 28,613.85 = 11,685.62 : x
  2. Step 2: Convert to fraction form
    19,103.60/28,613.85 = 11,685.62/x
  3. Step 3: Cross multiply
    19,103.60x = 28,613.85 × 11,685.62
  4. Step 4: Simplify right side
    19,103.60x = 334,370,577.84
  5. Step 5: Solve for x
    x = 334,370,577.84/19,103.60
  6. Step 6: Final answer
    x = 17,503.01

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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.