Home / 10,919.10-16,381.41-4,345.26

Finding the Fourth Proportional to 10,919.10, 16,381.41 and 4,345.26

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Solution

The fourth proportional to 10,919.10, 16,381.41 and 4,345.26 is: 6,518.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.10 : 16,381.41 = 4,345.26 : x
  2. Step 2: Convert to fraction form
    10,919.10/16,381.41 = 4,345.26/x
  3. Step 3: Cross multiply
    10,919.10x = 16,381.41 × 4,345.26
  4. Step 4: Simplify right side
    10,919.10x = 71,181,485.62
  5. Step 5: Solve for x
    x = 71,181,485.62/10,919.10
  6. Step 6: Final answer
    x = 6,518.99

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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.