Home / 6,666.12-10,000.92-1,986.24

Finding the Fourth Proportional to 6,666.12, 10,000.92 and 1,986.24

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Solution

The fourth proportional to 6,666.12, 10,000.92 and 1,986.24 is: 2,979.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.12 : 10,000.92 = 1,986.24 : x
  2. Step 2: Convert to fraction form
    6,666.12/10,000.92 = 1,986.24/x
  3. Step 3: Cross multiply
    6,666.12x = 10,000.92 × 1,986.24
  4. Step 4: Simplify right side
    6,666.12x = 19,864,227.34
  5. Step 5: Solve for x
    x = 19,864,227.34/6,666.12
  6. Step 6: Final answer
    x = 2,979.88

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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.