Home / 8,629.98-11,908.95-4,905.18

Finding the Fourth Proportional to 8,629.98, 11,908.95 and 4,905.18

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Solution

The fourth proportional to 8,629.98, 11,908.95 and 4,905.18 is: 6,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.98 : 11,908.95 = 4,905.18 : x
  2. Step 2: Convert to fraction form
    8,629.98/11,908.95 = 4,905.18/x
  3. Step 3: Cross multiply
    8,629.98x = 11,908.95 × 4,905.18
  4. Step 4: Simplify right side
    8,629.98x = 58,415,543.36
  5. Step 5: Solve for x
    x = 58,415,543.36/8,629.98
  6. Step 6: Final answer
    x = 6,768.91

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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.