Home / 13,441.98-18,550.01-7,474.21

Finding the Fourth Proportional to 13,441.98, 18,550.01 and 7,474.21

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Solution

The fourth proportional to 13,441.98, 18,550.01 and 7,474.21 is: 10,314.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.98 : 18,550.01 = 7,474.21 : x
  2. Step 2: Convert to fraction form
    13,441.98/18,550.01 = 7,474.21/x
  3. Step 3: Cross multiply
    13,441.98x = 18,550.01 × 7,474.21
  4. Step 4: Simplify right side
    13,441.98x = 138,646,670.24
  5. Step 5: Solve for x
    x = 138,646,670.24/13,441.98
  6. Step 6: Final answer
    x = 10,314.45

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Double scale
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Similar ratio
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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.