Home / 9,402.75-12,976.74-5,211.81

Finding the Fourth Proportional to 9,402.75, 12,976.74 and 5,211.81

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Solution

The fourth proportional to 9,402.75, 12,976.74 and 5,211.81 is: 7,192.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,402.75 : 12,976.74 = 5,211.81 : x
  2. Step 2: Convert to fraction form
    9,402.75/12,976.74 = 5,211.81/x
  3. Step 3: Cross multiply
    9,402.75x = 12,976.74 × 5,211.81
  4. Step 4: Simplify right side
    9,402.75x = 67,632,303.30
  5. Step 5: Solve for x
    x = 67,632,303.30/9,402.75
  6. Step 6: Final answer
    x = 7,192.82

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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.