Home / 13,820.75-19,057.57-9,336.72

Finding the Fourth Proportional to 13,820.75, 19,057.57 and 9,336.72

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Solution

The fourth proportional to 13,820.75, 19,057.57 and 9,336.72 is: 12,874.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.75 : 19,057.57 = 9,336.72 : x
  2. Step 2: Convert to fraction form
    13,820.75/19,057.57 = 9,336.72/x
  3. Step 3: Cross multiply
    13,820.75x = 19,057.57 × 9,336.72
  4. Step 4: Simplify right side
    13,820.75x = 177,935,122.77
  5. Step 5: Solve for x
    x = 177,935,122.77/13,820.75
  6. Step 6: Final answer
    x = 12,874.49

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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.