Home / 8,448.90-11,669.22-6,455.04

Finding the Fourth Proportional to 8,448.90, 11,669.22 and 6,455.04

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Solution

The fourth proportional to 8,448.90, 11,669.22 and 6,455.04 is: 8,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.90 : 11,669.22 = 6,455.04 : x
  2. Step 2: Convert to fraction form
    8,448.90/11,669.22 = 6,455.04/x
  3. Step 3: Cross multiply
    8,448.90x = 11,669.22 × 6,455.04
  4. Step 4: Simplify right side
    8,448.90x = 75,325,281.87
  5. Step 5: Solve for x
    x = 75,325,281.87/8,448.90
  6. Step 6: Final answer
    x = 8,915.40

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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.