Home / 8,627.40-11,911.72-6,607.25

Finding the Fourth Proportional to 8,627.40, 11,911.72 and 6,607.25

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Solution

The fourth proportional to 8,627.40, 11,911.72 and 6,607.25 is: 9,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.40 : 11,911.72 = 6,607.25 : x
  2. Step 2: Convert to fraction form
    8,627.40/11,911.72 = 6,607.25/x
  3. Step 3: Cross multiply
    8,627.40x = 11,911.72 × 6,607.25
  4. Step 4: Simplify right side
    8,627.40x = 78,703,711.97
  5. Step 5: Solve for x
    x = 78,703,711.97/8,627.40
  6. Step 6: Final answer
    x = 9,122.53

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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.