Home / 13,869.36-20,808.72-4,635.36

Finding the Fourth Proportional to 13,869.36, 20,808.72 and 4,635.36

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Solution

The fourth proportional to 13,869.36, 20,808.72 and 4,635.36 is: 6,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.36 : 20,808.72 = 4,635.36 : x
  2. Step 2: Convert to fraction form
    13,869.36/20,808.72 = 4,635.36/x
  3. Step 3: Cross multiply
    13,869.36x = 20,808.72 × 4,635.36
  4. Step 4: Simplify right side
    13,869.36x = 96,455,908.34
  5. Step 5: Solve for x
    x = 96,455,908.34/13,869.36
  6. Step 6: Final answer
    x = 6,954.60

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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.