Home / 10,383.15-15,575.61-2,987.70

Finding the Fourth Proportional to 10,383.15, 15,575.61 and 2,987.70

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Solution

The fourth proportional to 10,383.15, 15,575.61 and 2,987.70 is: 4,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.15 : 15,575.61 = 2,987.70 : x
  2. Step 2: Convert to fraction form
    10,383.15/15,575.61 = 2,987.70/x
  3. Step 3: Cross multiply
    10,383.15x = 15,575.61 × 2,987.70
  4. Step 4: Simplify right side
    10,383.15x = 46,535,250.00
  5. Step 5: Solve for x
    x = 46,535,250.00/10,383.15
  6. Step 6: Final answer
    x = 4,481.80

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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.