Home / 13,236.01-18,267.15-7,571.28

Finding the Fourth Proportional to 13,236.01, 18,267.15 and 7,571.28

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Solution

The fourth proportional to 13,236.01, 18,267.15 and 7,571.28 is: 10,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.01 : 18,267.15 = 7,571.28 : x
  2. Step 2: Convert to fraction form
    13,236.01/18,267.15 = 7,571.28/x
  3. Step 3: Cross multiply
    13,236.01x = 18,267.15 × 7,571.28
  4. Step 4: Simplify right side
    13,236.01x = 138,305,707.45
  5. Step 5: Solve for x
    x = 138,305,707.45/13,236.01
  6. Step 6: Final answer
    x = 10,449.20

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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.