Home / 15,937.80-21,992.63-9,222.09

Finding the Fourth Proportional to 15,937.80, 21,992.63 and 9,222.09

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Solution

The fourth proportional to 15,937.80, 21,992.63 and 9,222.09 is: 12,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,937.80 : 21,992.63 = 9,222.09 : x
  2. Step 2: Convert to fraction form
    15,937.80/21,992.63 = 9,222.09/x
  3. Step 3: Cross multiply
    15,937.80x = 21,992.63 × 9,222.09
  4. Step 4: Simplify right side
    15,937.80x = 202,817,967.09
  5. Step 5: Solve for x
    x = 202,817,967.09/15,937.80
  6. Step 6: Final answer
    x = 12,725.59

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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.