Home / 15,654.60-21,624.05-11,668.79

Finding the Fourth Proportional to 15,654.60, 21,624.05 and 11,668.79

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Solution

The fourth proportional to 15,654.60, 21,624.05 and 11,668.79 is: 16,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.60 : 21,624.05 = 11,668.79 : x
  2. Step 2: Convert to fraction form
    15,654.60/21,624.05 = 11,668.79/x
  3. Step 3: Cross multiply
    15,654.60x = 21,624.05 × 11,668.79
  4. Step 4: Simplify right side
    15,654.60x = 252,326,331.94
  5. Step 5: Solve for x
    x = 252,326,331.94/15,654.60
  6. Step 6: Final answer
    x = 16,118.35

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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.