Home / 18,666.12-28,006.44-6,980.24

Finding the Fourth Proportional to 18,666.12, 28,006.44 and 6,980.24

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Solution

The fourth proportional to 18,666.12, 28,006.44 and 6,980.24 is: 10,473.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.12 : 28,006.44 = 6,980.24 : x
  2. Step 2: Convert to fraction form
    18,666.12/28,006.44 = 6,980.24/x
  3. Step 3: Cross multiply
    18,666.12x = 28,006.44 × 6,980.24
  4. Step 4: Simplify right side
    18,666.12x = 195,491,672.75
  5. Step 5: Solve for x
    x = 195,491,672.75/18,666.12
  6. Step 6: Final answer
    x = 10,473.07

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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.