Home / 8,812.16-12,161.79-5,275.37

Finding the Fourth Proportional to 8,812.16, 12,161.79 and 5,275.37

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Solution

The fourth proportional to 8,812.16, 12,161.79 and 5,275.37 is: 7,280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.16 : 12,161.79 = 5,275.37 : x
  2. Step 2: Convert to fraction form
    8,812.16/12,161.79 = 5,275.37/x
  3. Step 3: Cross multiply
    8,812.16x = 12,161.79 × 5,275.37
  4. Step 4: Simplify right side
    8,812.16x = 64,157,881.30
  5. Step 5: Solve for x
    x = 64,157,881.30/8,812.16
  6. Step 6: Final answer
    x = 7,280.61

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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.