Home / 12,156.86-18,227.64-5,133.26

Finding the Fourth Proportional to 12,156.86, 18,227.64 and 5,133.26

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Solution

The fourth proportional to 12,156.86, 18,227.64 and 5,133.26 is: 7,696.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.86 : 18,227.64 = 5,133.26 : x
  2. Step 2: Convert to fraction form
    12,156.86/18,227.64 = 5,133.26/x
  3. Step 3: Cross multiply
    12,156.86x = 18,227.64 × 5,133.26
  4. Step 4: Simplify right side
    12,156.86x = 93,567,215.31
  5. Step 5: Solve for x
    x = 93,567,215.31/12,156.86
  6. Step 6: Final answer
    x = 7,696.66

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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.