Home / 7,712.21-10,642.23-4,355.84

Finding the Fourth Proportional to 7,712.21, 10,642.23 and 4,355.84

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Solution

The fourth proportional to 7,712.21, 10,642.23 and 4,355.84 is: 6,010.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.21 : 10,642.23 = 4,355.84 : x
  2. Step 2: Convert to fraction form
    7,712.21/10,642.23 = 4,355.84/x
  3. Step 3: Cross multiply
    7,712.21x = 10,642.23 × 4,355.84
  4. Step 4: Simplify right side
    7,712.21x = 46,355,851.12
  5. Step 5: Solve for x
    x = 46,355,851.12/7,712.21
  6. Step 6: Final answer
    x = 6,010.71

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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.