Home / 13,863.34-20,775.36-10,728.76

Finding the Fourth Proportional to 13,863.34, 20,775.36 and 10,728.76

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Solution

The fourth proportional to 13,863.34, 20,775.36 and 10,728.76 is: 16,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.34 : 20,775.36 = 10,728.76 : x
  2. Step 2: Convert to fraction form
    13,863.34/20,775.36 = 10,728.76/x
  3. Step 3: Cross multiply
    13,863.34x = 20,775.36 × 10,728.76
  4. Step 4: Simplify right side
    13,863.34x = 222,893,851.35
  5. Step 5: Solve for x
    x = 222,893,851.35/13,863.34
  6. Step 6: Final answer
    x = 16,077.93

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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.