Home / 11,280.72-16,928.08-5,437.92

Finding the Fourth Proportional to 11,280.72, 16,928.08 and 5,437.92

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Solution

The fourth proportional to 11,280.72, 16,928.08 and 5,437.92 is: 8,160.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.72 : 16,928.08 = 5,437.92 : x
  2. Step 2: Convert to fraction form
    11,280.72/16,928.08 = 5,437.92/x
  3. Step 3: Cross multiply
    11,280.72x = 16,928.08 × 5,437.92
  4. Step 4: Simplify right side
    11,280.72x = 92,053,544.79
  5. Step 5: Solve for x
    x = 92,053,544.79/11,280.72
  6. Step 6: Final answer
    x = 8,160.25

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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.