Home / 9,329.68-12,875.16-5,137.84

Finding the Fourth Proportional to 9,329.68, 12,875.16 and 5,137.84

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Solution

The fourth proportional to 9,329.68, 12,875.16 and 5,137.84 is: 7,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.68 : 12,875.16 = 5,137.84 : x
  2. Step 2: Convert to fraction form
    9,329.68/12,875.16 = 5,137.84/x
  3. Step 3: Cross multiply
    9,329.68x = 12,875.16 × 5,137.84
  4. Step 4: Simplify right side
    9,329.68x = 66,150,512.05
  5. Step 5: Solve for x
    x = 66,150,512.05/9,329.68
  6. Step 6: Final answer
    x = 7,090.33

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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.