Home / 8,715.57-13,068.08-3,515.37

Finding the Fourth Proportional to 8,715.57, 13,068.08 and 3,515.37

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Solution

The fourth proportional to 8,715.57, 13,068.08 and 3,515.37 is: 5,270.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.57 : 13,068.08 = 3,515.37 : x
  2. Step 2: Convert to fraction form
    8,715.57/13,068.08 = 3,515.37/x
  3. Step 3: Cross multiply
    8,715.57x = 13,068.08 × 3,515.37
  4. Step 4: Simplify right side
    8,715.57x = 45,939,136.39
  5. Step 5: Solve for x
    x = 45,939,136.39/8,715.57
  6. Step 6: Final answer
    x = 5,270.93

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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.