Home / 8,135-11,226.48-4,947.20

Finding the Fourth Proportional to 8,135, 11,226.48 and 4,947.20

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Solution

The fourth proportional to 8,135, 11,226.48 and 4,947.20 is: 6,827.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135 : 11,226.48 = 4,947.20 : x
  2. Step 2: Convert to fraction form
    8,135/11,226.48 = 4,947.20/x
  3. Step 3: Cross multiply
    8,135x = 11,226.48 × 4,947.20
  4. Step 4: Simplify right side
    8,135x = 55,539,641.86
  5. Step 5: Solve for x
    x = 55,539,641.86/8,135
  6. Step 6: Final answer
    x = 6,827.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.