Home / 13,060.88-18,022.20-7,683.56

Finding the Fourth Proportional to 13,060.88, 18,022.20 and 7,683.56

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Solution

The fourth proportional to 13,060.88, 18,022.20 and 7,683.56 is: 10,602.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.88 : 18,022.20 = 7,683.56 : x
  2. Step 2: Convert to fraction form
    13,060.88/18,022.20 = 7,683.56/x
  3. Step 3: Cross multiply
    13,060.88x = 18,022.20 × 7,683.56
  4. Step 4: Simplify right side
    13,060.88x = 138,474,655.03
  5. Step 5: Solve for x
    x = 138,474,655.03/13,060.88
  6. Step 6: Final answer
    x = 10,602.25

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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.