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Finding the Fourth Proportional to 9,387.63, 14,080.77 and 2,813.67

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Solution

The fourth proportional to 9,387.63, 14,080.77 and 2,813.67 is: 4,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.63 : 14,080.77 = 2,813.67 : x
  2. Step 2: Convert to fraction form
    9,387.63/14,080.77 = 2,813.67/x
  3. Step 3: Cross multiply
    9,387.63x = 14,080.77 × 2,813.67
  4. Step 4: Simplify right side
    9,387.63x = 39,618,640.13
  5. Step 5: Solve for x
    x = 39,618,640.13/9,387.63
  6. Step 6: Final answer
    x = 4,220.30

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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.