Home / 10,181.40-15,269.51-2,786.30

Finding the Fourth Proportional to 10,181.40, 15,269.51 and 2,786.30

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Solution

The fourth proportional to 10,181.40, 15,269.51 and 2,786.30 is: 4,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181.40 : 15,269.51 = 2,786.30 : x
  2. Step 2: Convert to fraction form
    10,181.40/15,269.51 = 2,786.30/x
  3. Step 3: Cross multiply
    10,181.40x = 15,269.51 × 2,786.30
  4. Step 4: Simplify right side
    10,181.40x = 42,545,423.59
  5. Step 5: Solve for x
    x = 42,545,423.59/10,181.40
  6. Step 6: Final answer
    x = 4,178.74

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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.