Home / 6,983.10-10,486.80-4,917.60

Finding the Fourth Proportional to 6,983.10, 10,486.80 and 4,917.60

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Solution

The fourth proportional to 6,983.10, 10,486.80 and 4,917.60 is: 7,384.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,983.10 : 10,486.80 = 4,917.60 : x
  2. Step 2: Convert to fraction form
    6,983.10/10,486.80 = 4,917.60/x
  3. Step 3: Cross multiply
    6,983.10x = 10,486.80 × 4,917.60
  4. Step 4: Simplify right side
    6,983.10x = 51,569,887.68
  5. Step 5: Solve for x
    x = 51,569,887.68/6,983.10
  6. Step 6: Final answer
    x = 7,384.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.