Home / 7,707.12-10,620.12-5,317.82

Finding the Fourth Proportional to 7,707.12, 10,620.12 and 5,317.82

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Solution

The fourth proportional to 7,707.12, 10,620.12 and 5,317.82 is: 7,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.12 : 10,620.12 = 5,317.82 : x
  2. Step 2: Convert to fraction form
    7,707.12/10,620.12 = 5,317.82/x
  3. Step 3: Cross multiply
    7,707.12x = 10,620.12 × 5,317.82
  4. Step 4: Simplify right side
    7,707.12x = 56,475,893.21
  5. Step 5: Solve for x
    x = 56,475,893.21/7,707.12
  6. Step 6: Final answer
    x = 7,327.76

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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.