Home / 15,756.43-21,743.60-8,586.41

Finding the Fourth Proportional to 15,756.43, 21,743.60 and 8,586.41

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Solution

The fourth proportional to 15,756.43, 21,743.60 and 8,586.41 is: 11,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.43 : 21,743.60 = 8,586.41 : x
  2. Step 2: Convert to fraction form
    15,756.43/21,743.60 = 8,586.41/x
  3. Step 3: Cross multiply
    15,756.43x = 21,743.60 × 8,586.41
  4. Step 4: Simplify right side
    15,756.43x = 186,699,464.48
  5. Step 5: Solve for x
    x = 186,699,464.48/15,756.43
  6. Step 6: Final answer
    x = 11,849.10

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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.