Home / 13,668.23-18,862.52-7,699.55

Finding the Fourth Proportional to 13,668.23, 18,862.52 and 7,699.55

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Solution

The fourth proportional to 13,668.23, 18,862.52 and 7,699.55 is: 10,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.23 : 18,862.52 = 7,699.55 : x
  2. Step 2: Convert to fraction form
    13,668.23/18,862.52 = 7,699.55/x
  3. Step 3: Cross multiply
    13,668.23x = 18,862.52 × 7,699.55
  4. Step 4: Simplify right side
    13,668.23x = 145,232,783.06
  5. Step 5: Solve for x
    x = 145,232,783.06/13,668.23
  6. Step 6: Final answer
    x = 10,625.58

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1.5x scale

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.