Home / 13,415.36-20,123.23-4,055.46

Finding the Fourth Proportional to 13,415.36, 20,123.23 and 4,055.46

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Solution

The fourth proportional to 13,415.36, 20,123.23 and 4,055.46 is: 6,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.36 : 20,123.23 = 4,055.46 : x
  2. Step 2: Convert to fraction form
    13,415.36/20,123.23 = 4,055.46/x
  3. Step 3: Cross multiply
    13,415.36x = 20,123.23 × 4,055.46
  4. Step 4: Simplify right side
    13,415.36x = 81,608,944.20
  5. Step 5: Solve for x
    x = 81,608,944.20/13,415.36
  6. Step 6: Final answer
    x = 6,083.25

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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.