Home / 18,957.03-28,435.53-8,424.60

Finding the Fourth Proportional to 18,957.03, 28,435.53 and 8,424.60

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Solution

The fourth proportional to 18,957.03, 28,435.53 and 8,424.60 is: 12,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.03 : 28,435.53 = 8,424.60 : x
  2. Step 2: Convert to fraction form
    18,957.03/28,435.53 = 8,424.60/x
  3. Step 3: Cross multiply
    18,957.03x = 28,435.53 × 8,424.60
  4. Step 4: Simplify right side
    18,957.03x = 239,558,056.88
  5. Step 5: Solve for x
    x = 239,558,056.88/18,957.03
  6. Step 6: Final answer
    x = 12,636.90

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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.