Home / 8,928.27-12,320.80-4,949.35

Finding the Fourth Proportional to 8,928.27, 12,320.80 and 4,949.35

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Solution

The fourth proportional to 8,928.27, 12,320.80 and 4,949.35 is: 6,829.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.27 : 12,320.80 = 4,949.35 : x
  2. Step 2: Convert to fraction form
    8,928.27/12,320.80 = 4,949.35/x
  3. Step 3: Cross multiply
    8,928.27x = 12,320.80 × 4,949.35
  4. Step 4: Simplify right side
    8,928.27x = 60,979,908.30
  5. Step 5: Solve for x
    x = 60,979,908.30/8,928.27
  6. Step 6: Final answer
    x = 6,829.98

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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.