Home / 15,933.80-21,989.18-8,764.01

Finding the Fourth Proportional to 15,933.80, 21,989.18 and 8,764.01

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Solution

The fourth proportional to 15,933.80, 21,989.18 and 8,764.01 is: 12,094.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.80 : 21,989.18 = 8,764.01 : x
  2. Step 2: Convert to fraction form
    15,933.80/21,989.18 = 8,764.01/x
  3. Step 3: Cross multiply
    15,933.80x = 21,989.18 × 8,764.01
  4. Step 4: Simplify right side
    15,933.80x = 192,713,462.23
  5. Step 5: Solve for x
    x = 192,713,462.23/15,933.80
  6. Step 6: Final answer
    x = 12,094.64

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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.