Home / 8,908.37-12,292.16-5,131.70

Finding the Fourth Proportional to 8,908.37, 12,292.16 and 5,131.70

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Solution

The fourth proportional to 8,908.37, 12,292.16 and 5,131.70 is: 7,080.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.37 : 12,292.16 = 5,131.70 : x
  2. Step 2: Convert to fraction form
    8,908.37/12,292.16 = 5,131.70/x
  3. Step 3: Cross multiply
    8,908.37x = 12,292.16 × 5,131.70
  4. Step 4: Simplify right side
    8,908.37x = 63,079,677.47
  5. Step 5: Solve for x
    x = 63,079,677.47/8,908.37
  6. Step 6: Final answer
    x = 7,080.94

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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.