Home / 13,442.36-18,550.32-7,473.87

Finding the Fourth Proportional to 13,442.36, 18,550.32 and 7,473.87

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Solution

The fourth proportional to 13,442.36, 18,550.32 and 7,473.87 is: 10,313.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.36 : 18,550.32 = 7,473.87 : x
  2. Step 2: Convert to fraction form
    13,442.36/18,550.32 = 7,473.87/x
  3. Step 3: Cross multiply
    13,442.36x = 18,550.32 × 7,473.87
  4. Step 4: Simplify right side
    13,442.36x = 138,642,652.11
  5. Step 5: Solve for x
    x = 138,642,652.11/13,442.36
  6. Step 6: Final answer
    x = 10,313.87

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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.