Home / 11,453.16-15,791.45-8,901.66

Finding the Fourth Proportional to 11,453.16, 15,791.45 and 8,901.66

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Solution

The fourth proportional to 11,453.16, 15,791.45 and 8,901.66 is: 12,273.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,453.16 : 15,791.45 = 8,901.66 : x
  2. Step 2: Convert to fraction form
    11,453.16/15,791.45 = 8,901.66/x
  3. Step 3: Cross multiply
    11,453.16x = 15,791.45 × 8,901.66
  4. Step 4: Simplify right side
    11,453.16x = 140,570,118.81
  5. Step 5: Solve for x
    x = 140,570,118.81/11,453.16
  6. Step 6: Final answer
    x = 12,273.48

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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.