Home / 8,940.12-13,490.25-8,580.48

Finding the Fourth Proportional to 8,940.12, 13,490.25 and 8,580.48

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Solution

The fourth proportional to 8,940.12, 13,490.25 and 8,580.48 is: 12,947.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.12 : 13,490.25 = 8,580.48 : x
  2. Step 2: Convert to fraction form
    8,940.12/13,490.25 = 8,580.48/x
  3. Step 3: Cross multiply
    8,940.12x = 13,490.25 × 8,580.48
  4. Step 4: Simplify right side
    8,940.12x = 115,752,820.32
  5. Step 5: Solve for x
    x = 115,752,820.32/8,940.12
  6. Step 6: Final answer
    x = 12,947.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.