Home / 12,291.03-18,519.46-10,147.77

Finding the Fourth Proportional to 12,291.03, 18,519.46 and 10,147.77

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Solution

The fourth proportional to 12,291.03, 18,519.46 and 10,147.77 is: 15,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.03 : 18,519.46 = 10,147.77 : x
  2. Step 2: Convert to fraction form
    12,291.03/18,519.46 = 10,147.77/x
  3. Step 3: Cross multiply
    12,291.03x = 18,519.46 × 10,147.77
  4. Step 4: Simplify right side
    12,291.03x = 187,931,195.23
  5. Step 5: Solve for x
    x = 187,931,195.23/12,291.03
  6. Step 6: Final answer
    x = 15,290.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.