Home / 13,421.01-18,519.01-7,452.73

Finding the Fourth Proportional to 13,421.01, 18,519.01 and 7,452.73

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Solution

The fourth proportional to 13,421.01, 18,519.01 and 7,452.73 is: 10,283.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421.01 : 18,519.01 = 7,452.73 : x
  2. Step 2: Convert to fraction form
    13,421.01/18,519.01 = 7,452.73/x
  3. Step 3: Cross multiply
    13,421.01x = 18,519.01 × 7,452.73
  4. Step 4: Simplify right side
    13,421.01x = 138,017,051.54
  5. Step 5: Solve for x
    x = 138,017,051.54/13,421.01
  6. Step 6: Final answer
    x = 10,283.66

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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.