Home / 13,012.28-17,956.82-7,043.79

Finding the Fourth Proportional to 13,012.28, 17,956.82 and 7,043.79

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Solution

The fourth proportional to 13,012.28, 17,956.82 and 7,043.79 is: 9,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.28 : 17,956.82 = 7,043.79 : x
  2. Step 2: Convert to fraction form
    13,012.28/17,956.82 = 7,043.79/x
  3. Step 3: Cross multiply
    13,012.28x = 17,956.82 × 7,043.79
  4. Step 4: Simplify right side
    13,012.28x = 126,484,154.10
  5. Step 5: Solve for x
    x = 126,484,154.10/13,012.28
  6. Step 6: Final answer
    x = 9,720.37

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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.