Home / 10,547.82-15,821.73-2,756.43

Finding the Fourth Proportional to 10,547.82, 15,821.73 and 2,756.43

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Solution

The fourth proportional to 10,547.82, 15,821.73 and 2,756.43 is: 4,134.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,547.82 : 15,821.73 = 2,756.43 : x
  2. Step 2: Convert to fraction form
    10,547.82/15,821.73 = 2,756.43/x
  3. Step 3: Cross multiply
    10,547.82x = 15,821.73 × 2,756.43
  4. Step 4: Simplify right side
    10,547.82x = 43,611,491.22
  5. Step 5: Solve for x
    x = 43,611,491.22/10,547.82
  6. Step 6: Final answer
    x = 4,134.65

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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.