Home / 15,933.84-21,979.73-9,558.74

Finding the Fourth Proportional to 15,933.84, 21,979.73 and 9,558.74

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Solution

The fourth proportional to 15,933.84, 21,979.73 and 9,558.74 is: 13,185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.84 : 21,979.73 = 9,558.74 : x
  2. Step 2: Convert to fraction form
    15,933.84/21,979.73 = 9,558.74/x
  3. Step 3: Cross multiply
    15,933.84x = 21,979.73 × 9,558.74
  4. Step 4: Simplify right side
    15,933.84x = 210,098,438.34
  5. Step 5: Solve for x
    x = 210,098,438.34/15,933.84
  6. Step 6: Final answer
    x = 13,185.68

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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.