Home / 13,243.28-19,873.30-7,403.72

Finding the Fourth Proportional to 13,243.28, 19,873.30 and 7,403.72

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Solution

The fourth proportional to 13,243.28, 19,873.30 and 7,403.72 is: 11,110.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.28 : 19,873.30 = 7,403.72 : x
  2. Step 2: Convert to fraction form
    13,243.28/19,873.30 = 7,403.72/x
  3. Step 3: Cross multiply
    13,243.28x = 19,873.30 × 7,403.72
  4. Step 4: Simplify right side
    13,243.28x = 147,136,348.68
  5. Step 5: Solve for x
    x = 147,136,348.68/13,243.28
  6. Step 6: Final answer
    x = 11,110.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.