Home / 12,868.57-17,734.55-9,277.29

Finding the Fourth Proportional to 12,868.57, 17,734.55 and 9,277.29

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Solution

The fourth proportional to 12,868.57, 17,734.55 and 9,277.29 is: 12,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.57 : 17,734.55 = 9,277.29 : x
  2. Step 2: Convert to fraction form
    12,868.57/17,734.55 = 9,277.29/x
  3. Step 3: Cross multiply
    12,868.57x = 17,734.55 × 9,277.29
  4. Step 4: Simplify right side
    12,868.57x = 164,528,516.98
  5. Step 5: Solve for x
    x = 164,528,516.98/12,868.57
  6. Step 6: Final answer
    x = 12,785.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.