Home / 13,456.83-20,187.69-5,555.04

Finding the Fourth Proportional to 13,456.83, 20,187.69 and 5,555.04

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Solution

The fourth proportional to 13,456.83, 20,187.69 and 5,555.04 is: 8,333.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.83 : 20,187.69 = 5,555.04 : x
  2. Step 2: Convert to fraction form
    13,456.83/20,187.69 = 5,555.04/x
  3. Step 3: Cross multiply
    13,456.83x = 20,187.69 × 5,555.04
  4. Step 4: Simplify right side
    13,456.83x = 112,143,425.46
  5. Step 5: Solve for x
    x = 112,143,425.46/13,456.83
  6. Step 6: Final answer
    x = 8,333.57

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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.