Home / 10,421.84-15,629.49-3,026.81

Finding the Fourth Proportional to 10,421.84, 15,629.49 and 3,026.81

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Solution

The fourth proportional to 10,421.84, 15,629.49 and 3,026.81 is: 4,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.84 : 15,629.49 = 3,026.81 : x
  2. Step 2: Convert to fraction form
    10,421.84/15,629.49 = 3,026.81/x
  3. Step 3: Cross multiply
    10,421.84x = 15,629.49 × 3,026.81
  4. Step 4: Simplify right side
    10,421.84x = 47,307,418.48
  5. Step 5: Solve for x
    x = 47,307,418.48/10,421.84
  6. Step 6: Final answer
    x = 4,539.26

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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.