Home / 8,688.24-13,049.84-5,185.10

Finding the Fourth Proportional to 8,688.24, 13,049.84 and 5,185.10

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Solution

The fourth proportional to 8,688.24, 13,049.84 and 5,185.10 is: 7,788.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.24 : 13,049.84 = 5,185.10 : x
  2. Step 2: Convert to fraction form
    8,688.24/13,049.84 = 5,185.10/x
  3. Step 3: Cross multiply
    8,688.24x = 13,049.84 × 5,185.10
  4. Step 4: Simplify right side
    8,688.24x = 67,664,725.38
  5. Step 5: Solve for x
    x = 67,664,725.38/8,688.24
  6. Step 6: Final answer
    x = 7,788.08

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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.