Home / 13,938.60-20,883.54-11,613.54

Finding the Fourth Proportional to 13,938.60, 20,883.54 and 11,613.54

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Solution

The fourth proportional to 13,938.60, 20,883.54 and 11,613.54 is: 17,400.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.60 : 20,883.54 = 11,613.54 : x
  2. Step 2: Convert to fraction form
    13,938.60/20,883.54 = 11,613.54/x
  3. Step 3: Cross multiply
    13,938.60x = 20,883.54 × 11,613.54
  4. Step 4: Simplify right side
    13,938.60x = 242,531,827.13
  5. Step 5: Solve for x
    x = 242,531,827.13/13,938.60
  6. Step 6: Final answer
    x = 17,400.01

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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.