Home / 9,156.07-13,734.15-3,889.72

Finding the Fourth Proportional to 9,156.07, 13,734.15 and 3,889.72

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Solution

The fourth proportional to 9,156.07, 13,734.15 and 3,889.72 is: 5,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.07 : 13,734.15 = 3,889.72 : x
  2. Step 2: Convert to fraction form
    9,156.07/13,734.15 = 3,889.72/x
  3. Step 3: Cross multiply
    9,156.07x = 13,734.15 × 3,889.72
  4. Step 4: Simplify right side
    9,156.07x = 53,421,997.94
  5. Step 5: Solve for x
    x = 53,421,997.94/9,156.07
  6. Step 6: Final answer
    x = 5,834.60

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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.