Home / 12,590,542.60-18,885,813.90-11,540,782.60

Finding the Fourth Proportional to 12,590,542.60, 18,885,813.90 and 11,540,782.60

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Solution

The fourth proportional to 12,590,542.60, 18,885,813.90 and 11,540,782.60 is: 17,311,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590,542.60 : 18,885,813.90 = 11,540,782.60 : x
  2. Step 2: Convert to fraction form
    12,590,542.60/18,885,813.90 = 11,540,782.60/x
  3. Step 3: Cross multiply
    12,590,542.60x = 18,885,813.90 × 11,540,782.60
  4. Step 4: Simplify right side
    12,590,542.60x = 217,957,072,443,958.12
  5. Step 5: Solve for x
    x = 217,957,072,443,958.12/12,590,542.60
  6. Step 6: Final answer
    x = 17,311,173.90

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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.