Home / 19,905.30-29,856.15-6,758.10

Finding the Fourth Proportional to 19,905.30, 29,856.15 and 6,758.10

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Solution

The fourth proportional to 19,905.30, 29,856.15 and 6,758.10 is: 10,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.30 : 29,856.15 = 6,758.10 : x
  2. Step 2: Convert to fraction form
    19,905.30/29,856.15 = 6,758.10/x
  3. Step 3: Cross multiply
    19,905.30x = 29,856.15 × 6,758.10
  4. Step 4: Simplify right side
    19,905.30x = 201,770,847.32
  5. Step 5: Solve for x
    x = 201,770,847.32/19,905.30
  6. Step 6: Final answer
    x = 10,136.54

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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.