Home / 7,755.17-10,709.70-6,629.57

Finding the Fourth Proportional to 7,755.17, 10,709.70 and 6,629.57

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Solution

The fourth proportional to 7,755.17, 10,709.70 and 6,629.57 is: 9,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.17 : 10,709.70 = 6,629.57 : x
  2. Step 2: Convert to fraction form
    7,755.17/10,709.70 = 6,629.57/x
  3. Step 3: Cross multiply
    7,755.17x = 10,709.70 × 6,629.57
  4. Step 4: Simplify right side
    7,755.17x = 71,000,652.28
  5. Step 5: Solve for x
    x = 71,000,652.28/7,755.17
  6. Step 6: Final answer
    x = 9,155.27

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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.