Home / 15,765.06-21,755.93-9,796.98

Finding the Fourth Proportional to 15,765.06, 21,755.93 and 9,796.98

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Solution

The fourth proportional to 15,765.06, 21,755.93 and 9,796.98 is: 13,519.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.06 : 21,755.93 = 9,796.98 : x
  2. Step 2: Convert to fraction form
    15,765.06/21,755.93 = 9,796.98/x
  3. Step 3: Cross multiply
    15,765.06x = 21,755.93 × 9,796.98
  4. Step 4: Simplify right side
    15,765.06x = 213,142,362.11
  5. Step 5: Solve for x
    x = 213,142,362.11/15,765.06
  6. Step 6: Final answer
    x = 13,519.92

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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.