Home / 12,370.11-18,555.21-3,605.01

Finding the Fourth Proportional to 12,370.11, 18,555.21 and 3,605.01

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Solution

The fourth proportional to 12,370.11, 18,555.21 and 3,605.01 is: 5,407.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.11 : 18,555.21 = 3,605.01 : x
  2. Step 2: Convert to fraction form
    12,370.11/18,555.21 = 3,605.01/x
  3. Step 3: Cross multiply
    12,370.11x = 18,555.21 × 3,605.01
  4. Step 4: Simplify right side
    12,370.11x = 66,891,717.60
  5. Step 5: Solve for x
    x = 66,891,717.60/12,370.11
  6. Step 6: Final answer
    x = 5,407.53

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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.