Home / 13,387.36-20,081.08-4,153.36

Finding the Fourth Proportional to 13,387.36, 20,081.08 and 4,153.36

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Solution

The fourth proportional to 13,387.36, 20,081.08 and 4,153.36 is: 6,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.36 : 20,081.08 = 4,153.36 : x
  2. Step 2: Convert to fraction form
    13,387.36/20,081.08 = 4,153.36/x
  3. Step 3: Cross multiply
    13,387.36x = 20,081.08 × 4,153.36
  4. Step 4: Simplify right side
    13,387.36x = 83,403,954.43
  5. Step 5: Solve for x
    x = 83,403,954.43/13,387.36
  6. Step 6: Final answer
    x = 6,230.05

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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.