Home / 11,742.22-16,219.81-8,752.87

Finding the Fourth Proportional to 11,742.22, 16,219.81 and 8,752.87

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Solution

The fourth proportional to 11,742.22, 16,219.81 and 8,752.87 is: 12,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,742.22 : 16,219.81 = 8,752.87 : x
  2. Step 2: Convert to fraction form
    11,742.22/16,219.81 = 8,752.87/x
  3. Step 3: Cross multiply
    11,742.22x = 16,219.81 × 8,752.87
  4. Step 4: Simplify right side
    11,742.22x = 141,969,888.35
  5. Step 5: Solve for x
    x = 141,969,888.35/11,742.22
  6. Step 6: Final answer
    x = 12,090.55

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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.