Home / 11,727.60-16,188.20-7,254.80

Finding the Fourth Proportional to 11,727.60, 16,188.20 and 7,254.80

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Solution

The fourth proportional to 11,727.60, 16,188.20 and 7,254.80 is: 10,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.60 : 16,188.20 = 7,254.80 : x
  2. Step 2: Convert to fraction form
    11,727.60/16,188.20 = 7,254.80/x
  3. Step 3: Cross multiply
    11,727.60x = 16,188.20 × 7,254.80
  4. Step 4: Simplify right side
    11,727.60x = 117,442,153.36
  5. Step 5: Solve for x
    x = 117,442,153.36/11,727.60
  6. Step 6: Final answer
    x = 10,014.17

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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.