Home / 12,200.48-18,300.68-4,409.28

Finding the Fourth Proportional to 12,200.48, 18,300.68 and 4,409.28

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Solution

The fourth proportional to 12,200.48, 18,300.68 and 4,409.28 is: 6,613.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.48 : 18,300.68 = 4,409.28 : x
  2. Step 2: Convert to fraction form
    12,200.48/18,300.68 = 4,409.28/x
  3. Step 3: Cross multiply
    12,200.48x = 18,300.68 × 4,409.28
  4. Step 4: Simplify right side
    12,200.48x = 80,692,822.31
  5. Step 5: Solve for x
    x = 80,692,822.31/12,200.48
  6. Step 6: Final answer
    x = 6,613.91

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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.