Home / 8,455.89-12,683.69-2,612.35

Finding the Fourth Proportional to 8,455.89, 12,683.69 and 2,612.35

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Solution

The fourth proportional to 8,455.89, 12,683.69 and 2,612.35 is: 3,918.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.89 : 12,683.69 = 2,612.35 : x
  2. Step 2: Convert to fraction form
    8,455.89/12,683.69 = 2,612.35/x
  3. Step 3: Cross multiply
    8,455.89x = 12,683.69 × 2,612.35
  4. Step 4: Simplify right side
    8,455.89x = 33,134,250.16
  5. Step 5: Solve for x
    x = 33,134,250.16/8,455.89
  6. Step 6: Final answer
    x = 3,918.48

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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.