Home / 19,911.56-29,870.44-6,760.87

Finding the Fourth Proportional to 19,911.56, 29,870.44 and 6,760.87

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Solution

The fourth proportional to 19,911.56, 29,870.44 and 6,760.87 is: 10,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.56 : 29,870.44 = 6,760.87 : x
  2. Step 2: Convert to fraction form
    19,911.56/29,870.44 = 6,760.87/x
  3. Step 3: Cross multiply
    19,911.56x = 29,870.44 × 6,760.87
  4. Step 4: Simplify right side
    19,911.56x = 201,950,070.10
  5. Step 5: Solve for x
    x = 201,950,070.10/19,911.56
  6. Step 6: Final answer
    x = 10,142.36

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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.