Home / 7,814.50-11,721.75-2,342.50

Finding the Fourth Proportional to 7,814.50, 11,721.75 and 2,342.50

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Solution

The fourth proportional to 7,814.50, 11,721.75 and 2,342.50 is: 3,513.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.50 : 11,721.75 = 2,342.50 : x
  2. Step 2: Convert to fraction form
    7,814.50/11,721.75 = 2,342.50/x
  3. Step 3: Cross multiply
    7,814.50x = 11,721.75 × 2,342.50
  4. Step 4: Simplify right side
    7,814.50x = 27,458,199.38
  5. Step 5: Solve for x
    x = 27,458,199.38/7,814.50
  6. Step 6: Final answer
    x = 3,513.75

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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.