Home / 12,161.16-18,252.10-4,770.76

Finding the Fourth Proportional to 12,161.16, 18,252.10 and 4,770.76

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Solution

The fourth proportional to 12,161.16, 18,252.10 and 4,770.76 is: 7,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.16 : 18,252.10 = 4,770.76 : x
  2. Step 2: Convert to fraction form
    12,161.16/18,252.10 = 4,770.76/x
  3. Step 3: Cross multiply
    12,161.16x = 18,252.10 × 4,770.76
  4. Step 4: Simplify right side
    12,161.16x = 87,076,388.60
  5. Step 5: Solve for x
    x = 87,076,388.60/12,161.16
  6. Step 6: Final answer
    x = 7,160.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.