Home / 8,935.41-12,329.08-5,398.81

Finding the Fourth Proportional to 8,935.41, 12,329.08 and 5,398.81

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Solution

The fourth proportional to 8,935.41, 12,329.08 and 5,398.81 is: 7,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.41 : 12,329.08 = 5,398.81 : x
  2. Step 2: Convert to fraction form
    8,935.41/12,329.08 = 5,398.81/x
  3. Step 3: Cross multiply
    8,935.41x = 12,329.08 × 5,398.81
  4. Step 4: Simplify right side
    8,935.41x = 66,562,360.39
  5. Step 5: Solve for x
    x = 66,562,360.39/8,935.41
  6. Step 6: Final answer
    x = 7,449.28

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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.