Home / 8,558.10-12,838.15-2,715.30

Finding the Fourth Proportional to 8,558.10, 12,838.15 and 2,715.30

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Solution

The fourth proportional to 8,558.10, 12,838.15 and 2,715.30 is: 4,073.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.10 : 12,838.15 = 2,715.30 : x
  2. Step 2: Convert to fraction form
    8,558.10/12,838.15 = 2,715.30/x
  3. Step 3: Cross multiply
    8,558.10x = 12,838.15 × 2,715.30
  4. Step 4: Simplify right side
    8,558.10x = 34,859,428.70
  5. Step 5: Solve for x
    x = 34,859,428.70/8,558.10
  6. Step 6: Final answer
    x = 4,073.27

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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.