Home / 9,363.14-12,920.55-5,171.48

Finding the Fourth Proportional to 9,363.14, 12,920.55 and 5,171.48

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Solution

The fourth proportional to 9,363.14, 12,920.55 and 5,171.48 is: 7,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.14 : 12,920.55 = 5,171.48 : x
  2. Step 2: Convert to fraction form
    9,363.14/12,920.55 = 5,171.48/x
  3. Step 3: Cross multiply
    9,363.14x = 12,920.55 × 5,171.48
  4. Step 4: Simplify right side
    9,363.14x = 66,818,365.91
  5. Step 5: Solve for x
    x = 66,818,365.91/9,363.14
  6. Step 6: Final answer
    x = 7,136.32

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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.