Home / 13,929.36-20,894.09-3,541.11

Finding the Fourth Proportional to 13,929.36, 20,894.09 and 3,541.11

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Solution

The fourth proportional to 13,929.36, 20,894.09 and 3,541.11 is: 5,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.36 : 20,894.09 = 3,541.11 : x
  2. Step 2: Convert to fraction form
    13,929.36/20,894.09 = 3,541.11/x
  3. Step 3: Cross multiply
    13,929.36x = 20,894.09 × 3,541.11
  4. Step 4: Simplify right side
    13,929.36x = 73,988,271.04
  5. Step 5: Solve for x
    x = 73,988,271.04/13,929.36
  6. Step 6: Final answer
    x = 5,311.68

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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.