Home / 8,715.07-13,065.26-3,780.99

Finding the Fourth Proportional to 8,715.07, 13,065.26 and 3,780.99

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Solution

The fourth proportional to 8,715.07, 13,065.26 and 3,780.99 is: 5,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.07 : 13,065.26 = 3,780.99 : x
  2. Step 2: Convert to fraction form
    8,715.07/13,065.26 = 3,780.99/x
  3. Step 3: Cross multiply
    8,715.07x = 13,065.26 × 3,780.99
  4. Step 4: Simplify right side
    8,715.07x = 49,399,598.50
  5. Step 5: Solve for x
    x = 49,399,598.50/8,715.07
  6. Step 6: Final answer
    x = 5,668.30

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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.