Home / 9,265.94-12,785.80-5,286.81

Finding the Fourth Proportional to 9,265.94, 12,785.80 and 5,286.81

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Solution

The fourth proportional to 9,265.94, 12,785.80 and 5,286.81 is: 7,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,265.94 : 12,785.80 = 5,286.81 : x
  2. Step 2: Convert to fraction form
    9,265.94/12,785.80 = 5,286.81/x
  3. Step 3: Cross multiply
    9,265.94x = 12,785.80 × 5,286.81
  4. Step 4: Simplify right side
    9,265.94x = 67,596,095.30
  5. Step 5: Solve for x
    x = 67,596,095.30/9,265.94
  6. Step 6: Final answer
    x = 7,295.11

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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.