Home / 8,586.10-12,880.47-3,655.75

Finding the Fourth Proportional to 8,586.10, 12,880.47 and 3,655.75

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Solution

The fourth proportional to 8,586.10, 12,880.47 and 3,655.75 is: 5,484.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.10 : 12,880.47 = 3,655.75 : x
  2. Step 2: Convert to fraction form
    8,586.10/12,880.47 = 3,655.75/x
  3. Step 3: Cross multiply
    8,586.10x = 12,880.47 × 3,655.75
  4. Step 4: Simplify right side
    8,586.10x = 47,087,778.20
  5. Step 5: Solve for x
    x = 47,087,778.20/8,586.10
  6. Step 6: Final answer
    x = 5,484.19

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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.