Home / 8,176.08-12,265.36-2,980.76

Finding the Fourth Proportional to 8,176.08, 12,265.36 and 2,980.76

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Solution

The fourth proportional to 8,176.08, 12,265.36 and 2,980.76 is: 4,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.08 : 12,265.36 = 2,980.76 : x
  2. Step 2: Convert to fraction form
    8,176.08/12,265.36 = 2,980.76/x
  3. Step 3: Cross multiply
    8,176.08x = 12,265.36 × 2,980.76
  4. Step 4: Simplify right side
    8,176.08x = 36,560,094.47
  5. Step 5: Solve for x
    x = 36,560,094.47/8,176.08
  6. Step 6: Final answer
    x = 4,471.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.