Home / 9,112.27-13,669.77-2,871.63

Finding the Fourth Proportional to 9,112.27, 13,669.77 and 2,871.63

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Solution

The fourth proportional to 9,112.27, 13,669.77 and 2,871.63 is: 4,307.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.27 : 13,669.77 = 2,871.63 : x
  2. Step 2: Convert to fraction form
    9,112.27/13,669.77 = 2,871.63/x
  3. Step 3: Cross multiply
    9,112.27x = 13,669.77 × 2,871.63
  4. Step 4: Simplify right side
    9,112.27x = 39,254,438.92
  5. Step 5: Solve for x
    x = 39,254,438.92/9,112.27
  6. Step 6: Final answer
    x = 4,307.87

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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.