Home / 9,156.30-13,736.90-3,891.55

Finding the Fourth Proportional to 9,156.30, 13,736.90 and 3,891.55

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Solution

The fourth proportional to 9,156.30, 13,736.90 and 3,891.55 is: 5,838.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.30 : 13,736.90 = 3,891.55 : x
  2. Step 2: Convert to fraction form
    9,156.30/13,736.90 = 3,891.55/x
  3. Step 3: Cross multiply
    9,156.30x = 13,736.90 × 3,891.55
  4. Step 4: Simplify right side
    9,156.30x = 53,457,808.58
  5. Step 5: Solve for x
    x = 53,457,808.58/9,156.30
  6. Step 6: Final answer
    x = 5,838.36

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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.