Home / 12,525.40-18,809.70-12,136.60

Finding the Fourth Proportional to 12,525.40, 18,809.70 and 12,136.60

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Solution

The fourth proportional to 12,525.40, 18,809.70 and 12,136.60 is: 18,225.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.40 : 18,809.70 = 12,136.60 : x
  2. Step 2: Convert to fraction form
    12,525.40/18,809.70 = 12,136.60/x
  3. Step 3: Cross multiply
    12,525.40x = 18,809.70 × 12,136.60
  4. Step 4: Simplify right side
    12,525.40x = 228,285,805.02
  5. Step 5: Solve for x
    x = 228,285,805.02/12,525.40
  6. Step 6: Final answer
    x = 18,225.83

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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.