Home / 13,668.03-18,862.65-7,699.95

Finding the Fourth Proportional to 13,668.03, 18,862.65 and 7,699.95

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Solution

The fourth proportional to 13,668.03, 18,862.65 and 7,699.95 is: 10,626.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.03 : 18,862.65 = 7,699.95 : x
  2. Step 2: Convert to fraction form
    13,668.03/18,862.65 = 7,699.95/x
  3. Step 3: Cross multiply
    13,668.03x = 18,862.65 × 7,699.95
  4. Step 4: Simplify right side
    13,668.03x = 145,241,461.87
  5. Step 5: Solve for x
    x = 145,241,461.87/13,668.03
  6. Step 6: Final answer
    x = 10,626.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.