Home / 13,585.59-18,719.37-12,650.58

Finding the Fourth Proportional to 13,585.59, 18,719.37 and 12,650.58

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Solution

The fourth proportional to 13,585.59, 18,719.37 and 12,650.58 is: 17,431.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.59 : 18,719.37 = 12,650.58 : x
  2. Step 2: Convert to fraction form
    13,585.59/18,719.37 = 12,650.58/x
  3. Step 3: Cross multiply
    13,585.59x = 18,719.37 × 12,650.58
  4. Step 4: Simplify right side
    13,585.59x = 236,810,887.73
  5. Step 5: Solve for x
    x = 236,810,887.73/13,585.59
  6. Step 6: Final answer
    x = 17,431.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.