Home / 13,245.18-18,277.82-7,276.56

Finding the Fourth Proportional to 13,245.18, 18,277.82 and 7,276.56

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Solution

The fourth proportional to 13,245.18, 18,277.82 and 7,276.56 is: 10,041.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.18 : 18,277.82 = 7,276.56 : x
  2. Step 2: Convert to fraction form
    13,245.18/18,277.82 = 7,276.56/x
  3. Step 3: Cross multiply
    13,245.18x = 18,277.82 × 7,276.56
  4. Step 4: Simplify right side
    13,245.18x = 132,999,653.90
  5. Step 5: Solve for x
    x = 132,999,653.90/13,245.18
  6. Step 6: Final answer
    x = 10,041.36

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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.