Home / 13,443.66-18,550.26-7,475.40

Finding the Fourth Proportional to 13,443.66, 18,550.26 and 7,475.40

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Solution

The fourth proportional to 13,443.66, 18,550.26 and 7,475.40 is: 10,314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.66 : 18,550.26 = 7,475.40 : x
  2. Step 2: Convert to fraction form
    13,443.66/18,550.26 = 7,475.40/x
  3. Step 3: Cross multiply
    13,443.66x = 18,550.26 × 7,475.40
  4. Step 4: Simplify right side
    13,443.66x = 138,670,613.60
  5. Step 5: Solve for x
    x = 138,670,613.60/13,443.66
  6. Step 6: Final answer
    x = 10,314.95

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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.