Home / 11,220.59-16,830.91-4,200.32

Finding the Fourth Proportional to 11,220.59, 16,830.91 and 4,200.32

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Solution

The fourth proportional to 11,220.59, 16,830.91 and 4,200.32 is: 6,300.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.59 : 16,830.91 = 4,200.32 : x
  2. Step 2: Convert to fraction form
    11,220.59/16,830.91 = 4,200.32/x
  3. Step 3: Cross multiply
    11,220.59x = 16,830.91 × 4,200.32
  4. Step 4: Simplify right side
    11,220.59x = 70,695,255.22
  5. Step 5: Solve for x
    x = 70,695,255.22/11,220.59
  6. Step 6: Final answer
    x = 6,300.49

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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.