Home / 10,820.44-14,929.86-6,220.12

Finding the Fourth Proportional to 10,820.44, 14,929.86 and 6,220.12

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Solution

The fourth proportional to 10,820.44, 14,929.86 and 6,220.12 is: 8,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.44 : 14,929.86 = 6,220.12 : x
  2. Step 2: Convert to fraction form
    10,820.44/14,929.86 = 6,220.12/x
  3. Step 3: Cross multiply
    10,820.44x = 14,929.86 × 6,220.12
  4. Step 4: Simplify right side
    10,820.44x = 92,865,520.78
  5. Step 5: Solve for x
    x = 92,865,520.78/10,820.44
  6. Step 6: Final answer
    x = 8,582.42

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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.