Home / 12,280.64-16,946.68-6,974.76

Finding the Fourth Proportional to 12,280.64, 16,946.68 and 6,974.76

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Solution

The fourth proportional to 12,280.64, 16,946.68 and 6,974.76 is: 9,624.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.64 : 16,946.68 = 6,974.76 : x
  2. Step 2: Convert to fraction form
    12,280.64/16,946.68 = 6,974.76/x
  3. Step 3: Cross multiply
    12,280.64x = 16,946.68 × 6,974.76
  4. Step 4: Simplify right side
    12,280.64x = 118,199,025.80
  5. Step 5: Solve for x
    x = 118,199,025.80/12,280.64
  6. Step 6: Final answer
    x = 9,624.83

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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.