Home / 9,403.50-12,976.90-5,211.75

Finding the Fourth Proportional to 9,403.50, 12,976.90 and 5,211.75

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Solution

The fourth proportional to 9,403.50, 12,976.90 and 5,211.75 is: 7,192.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.50 : 12,976.90 = 5,211.75 : x
  2. Step 2: Convert to fraction form
    9,403.50/12,976.90 = 5,211.75/x
  3. Step 3: Cross multiply
    9,403.50x = 12,976.90 × 5,211.75
  4. Step 4: Simplify right side
    9,403.50x = 67,632,345.55
  5. Step 5: Solve for x
    x = 67,632,345.55/9,403.50
  6. Step 6: Final answer
    x = 7,192.25

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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.