Home / 8,512.90-11,747.78-4,975.40

Finding the Fourth Proportional to 8,512.90, 11,747.78 and 4,975.40

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Solution

The fourth proportional to 8,512.90, 11,747.78 and 4,975.40 is: 6,866.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.90 : 11,747.78 = 4,975.40 : x
  2. Step 2: Convert to fraction form
    8,512.90/11,747.78 = 4,975.40/x
  3. Step 3: Cross multiply
    8,512.90x = 11,747.78 × 4,975.40
  4. Step 4: Simplify right side
    8,512.90x = 58,449,904.61
  5. Step 5: Solve for x
    x = 58,449,904.61/8,512.90
  6. Step 6: Final answer
    x = 6,866.04

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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.