Home / 10,214.54-15,320.66-2,820.05

Finding the Fourth Proportional to 10,214.54, 15,320.66 and 2,820.05

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Solution

The fourth proportional to 10,214.54, 15,320.66 and 2,820.05 is: 4,229.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.54 : 15,320.66 = 2,820.05 : x
  2. Step 2: Convert to fraction form
    10,214.54/15,320.66 = 2,820.05/x
  3. Step 3: Cross multiply
    10,214.54x = 15,320.66 × 2,820.05
  4. Step 4: Simplify right side
    10,214.54x = 43,205,009.84
  5. Step 5: Solve for x
    x = 43,205,009.84/10,214.54
  6. Step 6: Final answer
    x = 4,229.76

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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.