Home / 10,312.40-15,469.41-2,916.74

Finding the Fourth Proportional to 10,312.40, 15,469.41 and 2,916.74

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Solution

The fourth proportional to 10,312.40, 15,469.41 and 2,916.74 is: 4,375.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.40 : 15,469.41 = 2,916.74 : x
  2. Step 2: Convert to fraction form
    10,312.40/15,469.41 = 2,916.74/x
  3. Step 3: Cross multiply
    10,312.40x = 15,469.41 × 2,916.74
  4. Step 4: Simplify right side
    10,312.40x = 45,120,246.92
  5. Step 5: Solve for x
    x = 45,120,246.92/10,312.40
  6. Step 6: Final answer
    x = 4,375.34

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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.