Home / 13,400.91-18,493.50-7,350.75

Finding the Fourth Proportional to 13,400.91, 18,493.50 and 7,350.75

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Solution

The fourth proportional to 13,400.91, 18,493.50 and 7,350.75 is: 10,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.91 : 18,493.50 = 7,350.75 : x
  2. Step 2: Convert to fraction form
    13,400.91/18,493.50 = 7,350.75/x
  3. Step 3: Cross multiply
    13,400.91x = 18,493.50 × 7,350.75
  4. Step 4: Simplify right side
    13,400.91x = 135,941,095.13
  5. Step 5: Solve for x
    x = 135,941,095.13/13,400.91
  6. Step 6: Final answer
    x = 10,144.17

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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.