Home / 15,741.03-21,707.64-12,150.25

Finding the Fourth Proportional to 15,741.03, 21,707.64 and 12,150.25

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Solution

The fourth proportional to 15,741.03, 21,707.64 and 12,150.25 is: 16,755.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.03 : 21,707.64 = 12,150.25 : x
  2. Step 2: Convert to fraction form
    15,741.03/21,707.64 = 12,150.25/x
  3. Step 3: Cross multiply
    15,741.03x = 21,707.64 × 12,150.25
  4. Step 4: Simplify right side
    15,741.03x = 263,753,280.04
  5. Step 5: Solve for x
    x = 263,753,280.04/15,741.03
  6. Step 6: Final answer
    x = 16,755.79

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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.