Home / 11,520,415.20-17,280,622.80-8,534,431.20

Finding the Fourth Proportional to 11,520,415.20, 17,280,622.80 and 8,534,431.20

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Solution

The fourth proportional to 11,520,415.20, 17,280,622.80 and 8,534,431.20 is: 12,801,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520,415.20 : 17,280,622.80 = 8,534,431.20 : x
  2. Step 2: Convert to fraction form
    11,520,415.20/17,280,622.80 = 8,534,431.20/x
  3. Step 3: Cross multiply
    11,520,415.20x = 17,280,622.80 × 8,534,431.20
  4. Step 4: Simplify right side
    11,520,415.20x = 147,480,286,379,751.34
  5. Step 5: Solve for x
    x = 147,480,286,379,751.34/11,520,415.20
  6. Step 6: Final answer
    x = 12,801,646.80

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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.