Home / 15,755.16-21,741.45-9,036.12

Finding the Fourth Proportional to 15,755.16, 21,741.45 and 9,036.12

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Solution

The fourth proportional to 15,755.16, 21,741.45 and 9,036.12 is: 12,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755.16 : 21,741.45 = 9,036.12 : x
  2. Step 2: Convert to fraction form
    15,755.16/21,741.45 = 9,036.12/x
  3. Step 3: Cross multiply
    15,755.16x = 21,741.45 × 9,036.12
  4. Step 4: Simplify right side
    15,755.16x = 196,458,351.17
  5. Step 5: Solve for x
    x = 196,458,351.17/15,755.16
  6. Step 6: Final answer
    x = 12,469.46

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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.