Home / 10,556.20-15,834.30-8,636.20

Finding the Fourth Proportional to 10,556.20, 15,834.30 and 8,636.20

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Solution

The fourth proportional to 10,556.20, 15,834.30 and 8,636.20 is: 12,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.20 : 15,834.30 = 8,636.20 : x
  2. Step 2: Convert to fraction form
    10,556.20/15,834.30 = 8,636.20/x
  3. Step 3: Cross multiply
    10,556.20x = 15,834.30 × 8,636.20
  4. Step 4: Simplify right side
    10,556.20x = 136,748,181.66
  5. Step 5: Solve for x
    x = 136,748,181.66/10,556.20
  6. Step 6: Final answer
    x = 12,954.30

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1.5x scale

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.