Home / 10,556.21-15,834.33-2,658.80

Finding the Fourth Proportional to 10,556.21, 15,834.33 and 2,658.80

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Solution

The fourth proportional to 10,556.21, 15,834.33 and 2,658.80 is: 3,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.21 : 15,834.33 = 2,658.80 : x
  2. Step 2: Convert to fraction form
    10,556.21/15,834.33 = 2,658.80/x
  3. Step 3: Cross multiply
    10,556.21x = 15,834.33 × 2,658.80
  4. Step 4: Simplify right side
    10,556.21x = 42,100,228.29
  5. Step 5: Solve for x
    x = 42,100,228.29/10,556.21
  6. Step 6: Final answer
    x = 3,988.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.