Home / 15,893.77-21,933.67-8,724.36

Finding the Fourth Proportional to 15,893.77, 21,933.67 and 8,724.36

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Solution

The fourth proportional to 15,893.77, 21,933.67 and 8,724.36 is: 12,039.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.77 : 21,933.67 = 8,724.36 : x
  2. Step 2: Convert to fraction form
    15,893.77/21,933.67 = 8,724.36/x
  3. Step 3: Cross multiply
    15,893.77x = 21,933.67 × 8,724.36
  4. Step 4: Simplify right side
    15,893.77x = 191,357,186.62
  5. Step 5: Solve for x
    x = 191,357,186.62/15,893.77
  6. Step 6: Final answer
    x = 12,039.76

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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.