Home / 8,719.65-13,077.15-3,788.12

Finding the Fourth Proportional to 8,719.65, 13,077.15 and 3,788.12

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Solution

The fourth proportional to 8,719.65, 13,077.15 and 3,788.12 is: 5,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.65 : 13,077.15 = 3,788.12 : x
  2. Step 2: Convert to fraction form
    8,719.65/13,077.15 = 3,788.12/x
  3. Step 3: Cross multiply
    8,719.65x = 13,077.15 × 3,788.12
  4. Step 4: Simplify right side
    8,719.65x = 49,537,758.39
  5. Step 5: Solve for x
    x = 49,537,758.39/8,719.65
  6. Step 6: Final answer
    x = 5,681.16

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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.