Home / 15,765.34-21,755.29-9,050.52

Finding the Fourth Proportional to 15,765.34, 21,755.29 and 9,050.52

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Solution

The fourth proportional to 15,765.34, 21,755.29 and 9,050.52 is: 12,489.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.34 : 21,755.29 = 9,050.52 : x
  2. Step 2: Convert to fraction form
    15,765.34/21,755.29 = 9,050.52/x
  3. Step 3: Cross multiply
    15,765.34x = 21,755.29 × 9,050.52
  4. Step 4: Simplify right side
    15,765.34x = 196,896,687.25
  5. Step 5: Solve for x
    x = 196,896,687.25/15,765.34
  6. Step 6: Final answer
    x = 12,489.22

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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.