Home / 13,359.60-18,514.08-13,171.68

Finding the Fourth Proportional to 13,359.60, 18,514.08 and 13,171.68

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Solution

The fourth proportional to 13,359.60, 18,514.08 and 13,171.68 is: 18,253.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.60 : 18,514.08 = 13,171.68 : x
  2. Step 2: Convert to fraction form
    13,359.60/18,514.08 = 13,171.68/x
  3. Step 3: Cross multiply
    13,359.60x = 18,514.08 × 13,171.68
  4. Step 4: Simplify right side
    13,359.60x = 243,861,537.25
  5. Step 5: Solve for x
    x = 243,861,537.25/13,359.60
  6. Step 6: Final answer
    x = 18,253.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.