Home / 8,715.98-13,069.87-3,165.40

Finding the Fourth Proportional to 8,715.98, 13,069.87 and 3,165.40

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Solution

The fourth proportional to 8,715.98, 13,069.87 and 3,165.40 is: 4,746.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.98 : 13,069.87 = 3,165.40 : x
  2. Step 2: Convert to fraction form
    8,715.98/13,069.87 = 3,165.40/x
  3. Step 3: Cross multiply
    8,715.98x = 13,069.87 × 3,165.40
  4. Step 4: Simplify right side
    8,715.98x = 41,371,366.50
  5. Step 5: Solve for x
    x = 41,371,366.50/8,715.98
  6. Step 6: Final answer
    x = 4,746.61

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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.