Home / 9,363.08-12,921.36-5,171.42

Finding the Fourth Proportional to 9,363.08, 12,921.36 and 5,171.42

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Solution

The fourth proportional to 9,363.08, 12,921.36 and 5,171.42 is: 7,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.08 : 12,921.36 = 5,171.42 : x
  2. Step 2: Convert to fraction form
    9,363.08/12,921.36 = 5,171.42/x
  3. Step 3: Cross multiply
    9,363.08x = 12,921.36 × 5,171.42
  4. Step 4: Simplify right side
    9,363.08x = 66,821,779.53
  5. Step 5: Solve for x
    x = 66,821,779.53/9,363.08
  6. Step 6: Final answer
    x = 7,136.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.