Home / 8,458.08-12,688.20-2,615.28

Finding the Fourth Proportional to 8,458.08, 12,688.20 and 2,615.28

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Solution

The fourth proportional to 8,458.08, 12,688.20 and 2,615.28 is: 3,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.08 : 12,688.20 = 2,615.28 : x
  2. Step 2: Convert to fraction form
    8,458.08/12,688.20 = 2,615.28/x
  3. Step 3: Cross multiply
    8,458.08x = 12,688.20 × 2,615.28
  4. Step 4: Simplify right side
    8,458.08x = 33,183,195.70
  5. Step 5: Solve for x
    x = 33,183,195.70/8,458.08
  6. Step 6: Final answer
    x = 3,923.25

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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.