Home / 11,725.80-17,575.02-5,145.68

Finding the Fourth Proportional to 11,725.80, 17,575.02 and 5,145.68

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Solution

The fourth proportional to 11,725.80, 17,575.02 and 5,145.68 is: 7,712.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.80 : 17,575.02 = 5,145.68 : x
  2. Step 2: Convert to fraction form
    11,725.80/17,575.02 = 5,145.68/x
  3. Step 3: Cross multiply
    11,725.80x = 17,575.02 × 5,145.68
  4. Step 4: Simplify right side
    11,725.80x = 90,435,341.04
  5. Step 5: Solve for x
    x = 90,435,341.04/11,725.80
  6. Step 6: Final answer
    x = 7,712.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.