Home / 13,559.48-20,307.68-13,185.80

Finding the Fourth Proportional to 13,559.48, 20,307.68 and 13,185.80

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Solution

The fourth proportional to 13,559.48, 20,307.68 and 13,185.80 is: 19,748.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.48 : 20,307.68 = 13,185.80 : x
  2. Step 2: Convert to fraction form
    13,559.48/20,307.68 = 13,185.80/x
  3. Step 3: Cross multiply
    13,559.48x = 20,307.68 × 13,185.80
  4. Step 4: Simplify right side
    13,559.48x = 267,773,006.94
  5. Step 5: Solve for x
    x = 267,773,006.94/13,559.48
  6. Step 6: Final answer
    x = 19,748.03

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1.5x scale

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.