Home / 12,310.13-18,467.55-5,290.13

Finding the Fourth Proportional to 12,310.13, 18,467.55 and 5,290.13

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Solution

The fourth proportional to 12,310.13, 18,467.55 and 5,290.13 is: 7,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.13 : 18,467.55 = 5,290.13 : x
  2. Step 2: Convert to fraction form
    12,310.13/18,467.55 = 5,290.13/x
  3. Step 3: Cross multiply
    12,310.13x = 18,467.55 × 5,290.13
  4. Step 4: Simplify right side
    12,310.13x = 97,695,647.94
  5. Step 5: Solve for x
    x = 97,695,647.94/12,310.13
  6. Step 6: Final answer
    x = 7,936.20

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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.