Home / 7,783.32-11,668.68-5,311.92

Finding the Fourth Proportional to 7,783.32, 11,668.68 and 5,311.92

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Solution

The fourth proportional to 7,783.32, 11,668.68 and 5,311.92 is: 7,963.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.32 : 11,668.68 = 5,311.92 : x
  2. Step 2: Convert to fraction form
    7,783.32/11,668.68 = 5,311.92/x
  3. Step 3: Cross multiply
    7,783.32x = 11,668.68 × 5,311.92
  4. Step 4: Simplify right side
    7,783.32x = 61,983,094.67
  5. Step 5: Solve for x
    x = 61,983,094.67/7,783.32
  6. Step 6: Final answer
    x = 7,963.58

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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.