Home / 13,748.04-20,518.23-12,419.44

Finding the Fourth Proportional to 13,748.04, 20,518.23 and 12,419.44

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Solution

The fourth proportional to 13,748.04, 20,518.23 and 12,419.44 is: 18,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.04 : 20,518.23 = 12,419.44 : x
  2. Step 2: Convert to fraction form
    13,748.04/20,518.23 = 12,419.44/x
  3. Step 3: Cross multiply
    13,748.04x = 20,518.23 × 12,419.44
  4. Step 4: Simplify right side
    13,748.04x = 254,824,926.39
  5. Step 5: Solve for x
    x = 254,824,926.39/13,748.04
  6. Step 6: Final answer
    x = 18,535.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.