Home / 13,415.85-20,126.66-4,055.13

Finding the Fourth Proportional to 13,415.85, 20,126.66 and 4,055.13

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Solution

The fourth proportional to 13,415.85, 20,126.66 and 4,055.13 is: 6,083.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.85 : 20,126.66 = 4,055.13 : x
  2. Step 2: Convert to fraction form
    13,415.85/20,126.66 = 4,055.13/x
  3. Step 3: Cross multiply
    13,415.85x = 20,126.66 × 4,055.13
  4. Step 4: Simplify right side
    13,415.85x = 81,616,222.77
  5. Step 5: Solve for x
    x = 81,616,222.77/13,415.85
  6. Step 6: Final answer
    x = 6,083.57

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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.