Home / 15,636.59-21,577.82-9,668.91

Finding the Fourth Proportional to 15,636.59, 21,577.82 and 9,668.91

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Solution

The fourth proportional to 15,636.59, 21,577.82 and 9,668.91 is: 13,342.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.59 : 21,577.82 = 9,668.91 : x
  2. Step 2: Convert to fraction form
    15,636.59/21,577.82 = 9,668.91/x
  3. Step 3: Cross multiply
    15,636.59x = 21,577.82 × 9,668.91
  4. Step 4: Simplify right side
    15,636.59x = 208,633,951.23
  5. Step 5: Solve for x
    x = 208,633,951.23/15,636.59
  6. Step 6: Final answer
    x = 13,342.68

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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.