Home / 12,280.08-16,946.42-6,690.96

Finding the Fourth Proportional to 12,280.08, 16,946.42 and 6,690.96

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Solution

The fourth proportional to 12,280.08, 16,946.42 and 6,690.96 is: 9,233.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.08 : 16,946.42 = 6,690.96 : x
  2. Step 2: Convert to fraction form
    12,280.08/16,946.42 = 6,690.96/x
  3. Step 3: Cross multiply
    12,280.08x = 16,946.42 × 6,690.96
  4. Step 4: Simplify right side
    12,280.08x = 113,387,818.36
  5. Step 5: Solve for x
    x = 113,387,818.36/12,280.08
  6. Step 6: Final answer
    x = 9,233.48

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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.