Home / 18,904.32-28,357.92-5,757.72

Finding the Fourth Proportional to 18,904.32, 28,357.92 and 5,757.72

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Solution

The fourth proportional to 18,904.32, 28,357.92 and 5,757.72 is: 8,637.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.32 : 28,357.92 = 5,757.72 : x
  2. Step 2: Convert to fraction form
    18,904.32/28,357.92 = 5,757.72/x
  3. Step 3: Cross multiply
    18,904.32x = 28,357.92 × 5,757.72
  4. Step 4: Simplify right side
    18,904.32x = 163,276,963.14
  5. Step 5: Solve for x
    x = 163,276,963.14/18,904.32
  6. Step 6: Final answer
    x = 8,637.02

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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.