Home / 18,783.32-28,179.30-5,635.96

Finding the Fourth Proportional to 18,783.32, 28,179.30 and 5,635.96

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Solution

The fourth proportional to 18,783.32, 28,179.30 and 5,635.96 is: 8,455.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.32 : 28,179.30 = 5,635.96 : x
  2. Step 2: Convert to fraction form
    18,783.32/28,179.30 = 5,635.96/x
  3. Step 3: Cross multiply
    18,783.32x = 28,179.30 × 5,635.96
  4. Step 4: Simplify right side
    18,783.32x = 158,817,407.63
  5. Step 5: Solve for x
    x = 158,817,407.63/18,783.32
  6. Step 6: Final answer
    x = 8,455.24

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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.