Home / 15,668.21-21,614.08-10,289.87

Finding the Fourth Proportional to 15,668.21, 21,614.08 and 10,289.87

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Solution

The fourth proportional to 15,668.21, 21,614.08 and 10,289.87 is: 14,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.21 : 21,614.08 = 10,289.87 : x
  2. Step 2: Convert to fraction form
    15,668.21/21,614.08 = 10,289.87/x
  3. Step 3: Cross multiply
    15,668.21x = 21,614.08 × 10,289.87
  4. Step 4: Simplify right side
    15,668.21x = 222,406,116.64
  5. Step 5: Solve for x
    x = 222,406,116.64/15,668.21
  6. Step 6: Final answer
    x = 14,194.74

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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.