Home / 13,442.21-18,550.57-7,473.75

Finding the Fourth Proportional to 13,442.21, 18,550.57 and 7,473.75

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Solution

The fourth proportional to 13,442.21, 18,550.57 and 7,473.75 is: 10,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.21 : 18,550.57 = 7,473.75 : x
  2. Step 2: Convert to fraction form
    13,442.21/18,550.57 = 7,473.75/x
  3. Step 3: Cross multiply
    13,442.21x = 18,550.57 × 7,473.75
  4. Step 4: Simplify right side
    13,442.21x = 138,642,303.85
  5. Step 5: Solve for x
    x = 138,642,303.85/13,442.21
  6. Step 6: Final answer
    x = 10,313.95

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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.