Home / 10,312.21-15,468.31-3,738.40

Finding the Fourth Proportional to 10,312.21, 15,468.31 and 3,738.40

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Solution

The fourth proportional to 10,312.21, 15,468.31 and 3,738.40 is: 5,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.21 : 15,468.31 = 3,738.40 : x
  2. Step 2: Convert to fraction form
    10,312.21/15,468.31 = 3,738.40/x
  3. Step 3: Cross multiply
    10,312.21x = 15,468.31 × 3,738.40
  4. Step 4: Simplify right side
    10,312.21x = 57,826,634.07
  5. Step 5: Solve for x
    x = 57,826,634.07/10,312.21
  6. Step 6: Final answer
    x = 5,607.59

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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.