Home / 13,326.99-18,393.63-7,949.76

Finding the Fourth Proportional to 13,326.99, 18,393.63 and 7,949.76

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Solution

The fourth proportional to 13,326.99, 18,393.63 and 7,949.76 is: 10,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.99 : 18,393.63 = 7,949.76 : x
  2. Step 2: Convert to fraction form
    13,326.99/18,393.63 = 7,949.76/x
  3. Step 3: Cross multiply
    13,326.99x = 18,393.63 × 7,949.76
  4. Step 4: Simplify right side
    13,326.99x = 146,224,944.03
  5. Step 5: Solve for x
    x = 146,224,944.03/13,326.99
  6. Step 6: Final answer
    x = 10,972.09

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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.