Home / 12,077.25-16,666.39-6,772.07

Finding the Fourth Proportional to 12,077.25, 16,666.39 and 6,772.07

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Solution

The fourth proportional to 12,077.25, 16,666.39 and 6,772.07 is: 9,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.25 : 16,666.39 = 6,772.07 : x
  2. Step 2: Convert to fraction form
    12,077.25/16,666.39 = 6,772.07/x
  3. Step 3: Cross multiply
    12,077.25x = 16,666.39 × 6,772.07
  4. Step 4: Simplify right side
    12,077.25x = 112,865,946.69
  5. Step 5: Solve for x
    x = 112,865,946.69/12,077.25
  6. Step 6: Final answer
    x = 9,345.33

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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.