Home / 11,385.93-17,043.35-8,387.35

Finding the Fourth Proportional to 11,385.93, 17,043.35 and 8,387.35

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Solution

The fourth proportional to 11,385.93, 17,043.35 and 8,387.35 is: 12,554.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.93 : 17,043.35 = 8,387.35 : x
  2. Step 2: Convert to fraction form
    11,385.93/17,043.35 = 8,387.35/x
  3. Step 3: Cross multiply
    11,385.93x = 17,043.35 × 8,387.35
  4. Step 4: Simplify right side
    11,385.93x = 142,948,519.98
  5. Step 5: Solve for x
    x = 142,948,519.98/11,385.93
  6. Step 6: Final answer
    x = 12,554.84

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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.