Home / 10,582.90-15,876.64-3,186.78

Finding the Fourth Proportional to 10,582.90, 15,876.64 and 3,186.78

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Solution

The fourth proportional to 10,582.90, 15,876.64 and 3,186.78 is: 4,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,582.90 : 15,876.64 = 3,186.78 : x
  2. Step 2: Convert to fraction form
    10,582.90/15,876.64 = 3,186.78/x
  3. Step 3: Cross multiply
    10,582.90x = 15,876.64 × 3,186.78
  4. Step 4: Simplify right side
    10,582.90x = 50,595,358.82
  5. Step 5: Solve for x
    x = 50,595,358.82/10,582.90
  6. Step 6: Final answer
    x = 4,780.86

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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.