Home / 15,754.80-21,735.90-9,383.34

Finding the Fourth Proportional to 15,754.80, 21,735.90 and 9,383.34

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Solution

The fourth proportional to 15,754.80, 21,735.90 and 9,383.34 is: 12,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,754.80 : 21,735.90 = 9,383.34 : x
  2. Step 2: Convert to fraction form
    15,754.80/21,735.90 = 9,383.34/x
  3. Step 3: Cross multiply
    15,754.80x = 21,735.90 × 9,383.34
  4. Step 4: Simplify right side
    15,754.80x = 203,955,339.91
  5. Step 5: Solve for x
    x = 203,955,339.91/15,754.80
  6. Step 6: Final answer
    x = 12,945.60

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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.