Home / 8,936.90-12,334.40-4,959.30

Finding the Fourth Proportional to 8,936.90, 12,334.40 and 4,959.30

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Solution

The fourth proportional to 8,936.90, 12,334.40 and 4,959.30 is: 6,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.90 : 12,334.40 = 4,959.30 : x
  2. Step 2: Convert to fraction form
    8,936.90/12,334.40 = 4,959.30/x
  3. Step 3: Cross multiply
    8,936.90x = 12,334.40 × 4,959.30
  4. Step 4: Simplify right side
    8,936.90x = 61,169,928.25
  5. Step 5: Solve for x
    x = 61,169,928.25/8,936.90
  6. Step 6: Final answer
    x = 6,844.65

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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.