Home / 11,686.51-16,127.26-7,208.47

Finding the Fourth Proportional to 11,686.51, 16,127.26 and 7,208.47

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Solution

The fourth proportional to 11,686.51, 16,127.26 and 7,208.47 is: 9,947.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.51 : 16,127.26 = 7,208.47 : x
  2. Step 2: Convert to fraction form
    11,686.51/16,127.26 = 7,208.47/x
  3. Step 3: Cross multiply
    11,686.51x = 16,127.26 × 7,208.47
  4. Step 4: Simplify right side
    11,686.51x = 116,252,869.89
  5. Step 5: Solve for x
    x = 116,252,869.89/11,686.51
  6. Step 6: Final answer
    x = 9,947.61

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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.