Home / 13,443.25-18,550.63-7,474.55

Finding the Fourth Proportional to 13,443.25, 18,550.63 and 7,474.55

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Solution

The fourth proportional to 13,443.25, 18,550.63 and 7,474.55 is: 10,314.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.25 : 18,550.63 = 7,474.55 : x
  2. Step 2: Convert to fraction form
    13,443.25/18,550.63 = 7,474.55/x
  3. Step 3: Cross multiply
    13,443.25x = 18,550.63 × 7,474.55
  4. Step 4: Simplify right side
    13,443.25x = 138,657,574.09
  5. Step 5: Solve for x
    x = 138,657,574.09/13,443.25
  6. Step 6: Final answer
    x = 10,314.29

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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.