Home / 14,390.40-21,562.86-10,863.72

Finding the Fourth Proportional to 14,390.40, 21,562.86 and 10,863.72

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Solution

The fourth proportional to 14,390.40, 21,562.86 and 10,863.72 is: 16,278.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.40 : 21,562.86 = 10,863.72 : x
  2. Step 2: Convert to fraction form
    14,390.40/21,562.86 = 10,863.72/x
  3. Step 3: Cross multiply
    14,390.40x = 21,562.86 × 10,863.72
  4. Step 4: Simplify right side
    14,390.40x = 234,252,873.44
  5. Step 5: Solve for x
    x = 234,252,873.44/14,390.40
  6. Step 6: Final answer
    x = 16,278.41

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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.