Home / 8,277.16-11,438.86-6,782.72

Finding the Fourth Proportional to 8,277.16, 11,438.86 and 6,782.72

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Solution

The fourth proportional to 8,277.16, 11,438.86 and 6,782.72 is: 9,373.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,277.16 : 11,438.86 = 6,782.72 : x
  2. Step 2: Convert to fraction form
    8,277.16/11,438.86 = 6,782.72/x
  3. Step 3: Cross multiply
    8,277.16x = 11,438.86 × 6,782.72
  4. Step 4: Simplify right side
    8,277.16x = 77,586,584.50
  5. Step 5: Solve for x
    x = 77,586,584.50/8,277.16
  6. Step 6: Final answer
    x = 9,373.58

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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.