Home / 12,059.20-18,080.70-6,437.80

Finding the Fourth Proportional to 12,059.20, 18,080.70 and 6,437.80

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Solution

The fourth proportional to 12,059.20, 18,080.70 and 6,437.80 is: 9,652.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,059.20 : 18,080.70 = 6,437.80 : x
  2. Step 2: Convert to fraction form
    12,059.20/18,080.70 = 6,437.80/x
  3. Step 3: Cross multiply
    12,059.20x = 18,080.70 × 6,437.80
  4. Step 4: Simplify right side
    12,059.20x = 116,399,930.46
  5. Step 5: Solve for x
    x = 116,399,930.46/12,059.20
  6. Step 6: Final answer
    x = 9,652.38

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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.