Home / 13,315.38-19,945.88-8,301.32

Finding the Fourth Proportional to 13,315.38, 19,945.88 and 8,301.32

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Solution

The fourth proportional to 13,315.38, 19,945.88 and 8,301.32 is: 12,435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.38 : 19,945.88 = 8,301.32 : x
  2. Step 2: Convert to fraction form
    13,315.38/19,945.88 = 8,301.32/x
  3. Step 3: Cross multiply
    13,315.38x = 19,945.88 × 8,301.32
  4. Step 4: Simplify right side
    13,315.38x = 165,577,132.56
  5. Step 5: Solve for x
    x = 165,577,132.56/13,315.38
  6. Step 6: Final answer
    x = 12,435.03

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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.