Home / 12,370.18-18,555-3,010.24

Finding the Fourth Proportional to 12,370.18, 18,555 and 3,010.24

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Solution

The fourth proportional to 12,370.18, 18,555 and 3,010.24 is: 4,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.18 : 18,555 = 3,010.24 : x
  2. Step 2: Convert to fraction form
    12,370.18/18,555 = 3,010.24/x
  3. Step 3: Cross multiply
    12,370.18x = 18,555 × 3,010.24
  4. Step 4: Simplify right side
    12,370.18x = 55,855,003.20
  5. Step 5: Solve for x
    x = 55,855,003.20/12,370.18
  6. Step 6: Final answer
    x = 4,515.29

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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.