Home / 10,187.83-15,280.45-3,943.58

Finding the Fourth Proportional to 10,187.83, 15,280.45 and 3,943.58

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Solution

The fourth proportional to 10,187.83, 15,280.45 and 3,943.58 is: 5,914.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.83 : 15,280.45 = 3,943.58 : x
  2. Step 2: Convert to fraction form
    10,187.83/15,280.45 = 3,943.58/x
  3. Step 3: Cross multiply
    10,187.83x = 15,280.45 × 3,943.58
  4. Step 4: Simplify right side
    10,187.83x = 60,259,590.75
  5. Step 5: Solve for x
    x = 60,259,590.75/10,187.83
  6. Step 6: Final answer
    x = 5,914.86

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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.