Home / 18,954.96-28,431.40-5,807.32

Finding the Fourth Proportional to 18,954.96, 28,431.40 and 5,807.32

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Solution

The fourth proportional to 18,954.96, 28,431.40 and 5,807.32 is: 8,710.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.96 : 28,431.40 = 5,807.32 : x
  2. Step 2: Convert to fraction form
    18,954.96/28,431.40 = 5,807.32/x
  3. Step 3: Cross multiply
    18,954.96x = 28,431.40 × 5,807.32
  4. Step 4: Simplify right side
    18,954.96x = 165,110,237.85
  5. Step 5: Solve for x
    x = 165,110,237.85/18,954.96
  6. Step 6: Final answer
    x = 8,710.66

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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.