Home / 8,681.03-13,017.65-5,172.69

Finding the Fourth Proportional to 8,681.03, 13,017.65 and 5,172.69

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Solution

The fourth proportional to 8,681.03, 13,017.65 and 5,172.69 is: 7,756.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.03 : 13,017.65 = 5,172.69 : x
  2. Step 2: Convert to fraction form
    8,681.03/13,017.65 = 5,172.69/x
  3. Step 3: Cross multiply
    8,681.03x = 13,017.65 × 5,172.69
  4. Step 4: Simplify right side
    8,681.03x = 67,336,267.98
  5. Step 5: Solve for x
    x = 67,336,267.98/8,681.03
  6. Step 6: Final answer
    x = 7,756.71

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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.