Home / 7,878.86-11,814.83-2,332.64

Finding the Fourth Proportional to 7,878.86, 11,814.83 and 2,332.64

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Solution

The fourth proportional to 7,878.86, 11,814.83 and 2,332.64 is: 3,497.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878.86 : 11,814.83 = 2,332.64 : x
  2. Step 2: Convert to fraction form
    7,878.86/11,814.83 = 2,332.64/x
  3. Step 3: Cross multiply
    7,878.86x = 11,814.83 × 2,332.64
  4. Step 4: Simplify right side
    7,878.86x = 27,559,674.31
  5. Step 5: Solve for x
    x = 27,559,674.31/7,878.86
  6. Step 6: Final answer
    x = 3,497.93

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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.