Home / 12,118.60-16,725.65-7,644.77

Finding the Fourth Proportional to 12,118.60, 16,725.65 and 7,644.77

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Solution

The fourth proportional to 12,118.60, 16,725.65 and 7,644.77 is: 10,551.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.60 : 16,725.65 = 7,644.77 : x
  2. Step 2: Convert to fraction form
    12,118.60/16,725.65 = 7,644.77/x
  3. Step 3: Cross multiply
    12,118.60x = 16,725.65 × 7,644.77
  4. Step 4: Simplify right side
    12,118.60x = 127,863,747.35
  5. Step 5: Solve for x
    x = 127,863,747.35/12,118.60
  6. Step 6: Final answer
    x = 10,551.03

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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.