Home / 8,555.28-12,823.08-3,928.56

Finding the Fourth Proportional to 8,555.28, 12,823.08 and 3,928.56

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Solution

The fourth proportional to 8,555.28, 12,823.08 and 3,928.56 is: 5,888.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.28 : 12,823.08 = 3,928.56 : x
  2. Step 2: Convert to fraction form
    8,555.28/12,823.08 = 3,928.56/x
  3. Step 3: Cross multiply
    8,555.28x = 12,823.08 × 3,928.56
  4. Step 4: Simplify right side
    8,555.28x = 50,376,239.16
  5. Step 5: Solve for x
    x = 50,376,239.16/8,555.28
  6. Step 6: Final answer
    x = 5,888.32

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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.